Post on 07-Apr-2018
transcript
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 152
Arpit Gupta
Jinal Shah
Department of Fashion Technology
Semester VIII
21st Mayrsquo11
Batch 2007 - 2011
USE OF DAYLIGHT IN GARMENT
INDUSTRY FOR ILLUMINATION
Under the guidance of Prof Pavan Godiawala
Academic Research Graduation Project
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 252
National Institute of Fashion Technology2
ABOUT PROJECT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 352
Studies1 Garment Industry light illumination Survey
18 units 5 industries
2 Sunlight transferring equipment
Captures solar light rays
Use of optics and mirrors to transfer
Dispersion of light
National Institute of Fashion Technology3
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 452
National Institute of Fashion Technology4
TOPICS COVERED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 552
National Institute of Fashion Technology5
Introduction
Literature Review
Sunrsquos movement with respect toearth
Secondary Research
Ray Optics
Reflective Surfaces
Experiments Conducted
Sunlight lux tracking
Artificial lights lux at varying
distances
Measuring the efficiency of lens
Industrial light illumination
and consumption survey
Industries Covered
Topics covered in
questionnaire
Methods employed for lus
value collection
Findings
Solar Lighting System
Model development
References
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 252
National Institute of Fashion Technology2
ABOUT PROJECT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 352
Studies1 Garment Industry light illumination Survey
18 units 5 industries
2 Sunlight transferring equipment
Captures solar light rays
Use of optics and mirrors to transfer
Dispersion of light
National Institute of Fashion Technology3
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 452
National Institute of Fashion Technology4
TOPICS COVERED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 552
National Institute of Fashion Technology5
Introduction
Literature Review
Sunrsquos movement with respect toearth
Secondary Research
Ray Optics
Reflective Surfaces
Experiments Conducted
Sunlight lux tracking
Artificial lights lux at varying
distances
Measuring the efficiency of lens
Industrial light illumination
and consumption survey
Industries Covered
Topics covered in
questionnaire
Methods employed for lus
value collection
Findings
Solar Lighting System
Model development
References
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 352
Studies1 Garment Industry light illumination Survey
18 units 5 industries
2 Sunlight transferring equipment
Captures solar light rays
Use of optics and mirrors to transfer
Dispersion of light
National Institute of Fashion Technology3
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 452
National Institute of Fashion Technology4
TOPICS COVERED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 552
National Institute of Fashion Technology5
Introduction
Literature Review
Sunrsquos movement with respect toearth
Secondary Research
Ray Optics
Reflective Surfaces
Experiments Conducted
Sunlight lux tracking
Artificial lights lux at varying
distances
Measuring the efficiency of lens
Industrial light illumination
and consumption survey
Industries Covered
Topics covered in
questionnaire
Methods employed for lus
value collection
Findings
Solar Lighting System
Model development
References
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 452
National Institute of Fashion Technology4
TOPICS COVERED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 552
National Institute of Fashion Technology5
Introduction
Literature Review
Sunrsquos movement with respect toearth
Secondary Research
Ray Optics
Reflective Surfaces
Experiments Conducted
Sunlight lux tracking
Artificial lights lux at varying
distances
Measuring the efficiency of lens
Industrial light illumination
and consumption survey
Industries Covered
Topics covered in
questionnaire
Methods employed for lus
value collection
Findings
Solar Lighting System
Model development
References
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 552
National Institute of Fashion Technology5
Introduction
Literature Review
Sunrsquos movement with respect toearth
Secondary Research
Ray Optics
Reflective Surfaces
Experiments Conducted
Sunlight lux tracking
Artificial lights lux at varying
distances
Measuring the efficiency of lens
Industrial light illumination
and consumption survey
Industries Covered
Topics covered in
questionnaire
Methods employed for lus
value collection
Findings
Solar Lighting System
Model development
References
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 652
National Institute of Fashion Technology6
INTRODUCTION
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 752
Objectives
Find out lighting levels of garment industry in terms of Lux Find out percentage of electricity bill is contributed by artificial light
Maximize the use of daylight and minimize the use of artificial light
by developing an apparatus
Context
Duration 3 months
Location Gujarat
National Institute of Fashion Technology7
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 852
National Institute of Fashion Technology8
LITERATURE SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 952
Terminology
Light
Release of light photons when their electron gets excited
Lumen
Quantity of light emitted by the light source
Lux
Lux is equal to one lumen per square meter
Efficacy
The amount of light produced by a lamp measured in lumens
as a ratio of the amount of power consumed to produce itmeasured in watts
National Institute of Fashion Technology9
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1052
Terminology Continued
10
Color Rendering Index How a light source make color of an object appear to human eye
Scale 0 ndash 100
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1152
11 National Institute of Fashion Technology
Artificial Lights Details Continued
Type of Light Lumen per
watt
Life X
1000
Hours
Relative
efficiency
based on HPS
Start Up Time
(minute)
Color
Rendering
Index
Operating Cost
Incandescent 15-25 75 ndash 12 19 Immediate 95 - 98 High
Fluorescent 55-85 75 ndash 24
65 Immediate 50 - 90 Average
Compact Fluorescent
Light 45-60 10
46 Immediate 65 - 88 Low
LED 70-120 50 ndash 100
92 Immediate 70 - 90 Very Low
Mercury Vapor 50-60
16 ndash 24
46 2 ndash 7 50-60 Average
Metal Halide 80-100 15 ndash 15
77 2 ndash 5 70 -75 Below Average
High Pressure Sodium
(HPS) 75-130
20 ndash 24
100 3 ndash 4 25-35 Low
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1252
Sunrsquos movement with respect to Earth
12 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1352
Solar Tracker
13
Dual axis solar tracker
Working concept
LDR
Electronic circuit Motor
Servo (preferred)
Stepper
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1452
Ray Optics
14
Basics of Optics Laws of Reflection
Refraction
Lenses
Converging Diverging
National Institute of Fashion Technology
Concave lens Convex lens
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1552
Reflective Surfaces
15 National Institute of Fashion Technology
Material Reflectance
Foylon 95 light 85 heat
Mylar 92-97 light
C3 anti-detection film 92-97 light
Absorbs infrared radiations
Flat white paint 85 light
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1652
National Institute of Fashion Technology16
EXPERIMENTS CONDUCTED
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1752
Sunlight Lux Tracking Experiment 1
17
Context Place Vasna Ahmedabad Gujarat
Date April 17 2011 to April 23 2011
Time 0700 - 1800 hrs
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1852
Sunlight Lux Tracking
18
Minimum 25000 lx Maximum 65000 lx Average 50000 lx
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 1952
19
Purpose To know the variation in lux values with varying distance
and height
Fluorescent Tube light (36W 5600 lumens length = 48rdquo)
National Institute of Fashion Technology
Height from ground inches Height from machine
78 46
84 52
90 58
96 64
All measurements in inches
Height of workstation is 32
Artificial Lightrsquos lux at varying distances Experiment 2
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2052
Artificial Lightrsquos lux at varying distance(continued)
20 National Institute of Fashion Technology
Graphical Representation Percent lux reduction at center of the light 7892
Percent lux reduction at corner of the light 8131
Percent lux reduction at corner of the light lsquos side ( length ) 6813
Positions Distance in Inches
Average 0 12 24 36 48 60
Center from distance of 0 100 9171 7752 5987 4258 2981
decrease from previous na 9171 8453 7723 7113 7000 7892
Corner from distance of 0 100 9193 7961 6305 4979 3477
decrease from previous na 9193 8660 7919 7897 6983 8131
Lengthwise from distance of 0 100 7264 4789 3215 2063 1460
decrease from previous na 7264 6592 6713 6418 7078 6813
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2152
National Institute of Fashion Technology21
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2252
22 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2352
23 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2452
24
Lens 1 Convex 4 dioptre 65mm diameter
Lens 2 Concave 4 dioptre 65mm diameter
National Institute of Fashion Technology
Measuring the Efficiency of Lens used Experiment 3
Reading without lens 303
Final reading 267
drop in reading 0881188
Square root 094
Efficiency of each lens 094
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2552
Measuring the Efficiency of Lens used
25 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2652
National Institute of Fashion Technology26
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2752
National Institute of Fashion Technology27
INDUSTRIAL LIGHT ILLUMINATION AND
CONSUMPTION SURVEY
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2852
Industries covered
28
Arna
Artex
Banswara
Creative
Gini amp Jony
(18 units were covered)
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 2952
29
No of lights Height of the light fixtures
Power consumption of all lighting equipments
Total floor area
Tasks being undertaken
Area of work stations
No of windows
Area of windows
Lux Readings
(Data collected for each building floor) Questionnaire
National Institute of Fashion Technology
Topics covered in Questionnaire
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3052
Method employed for lux values collection
30 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3152
National Institute of Fashion Technology31
FINDINGS
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3252
Minimum Lux requirements
32
Offices Required Lux 150
Stores
For trims storage
500 lux
For checking trims
700-800 lux
Storage of fabric
200-250 lux
Cutting For panel check and re-cuting
1000-1200 lux
For spreading and cutting
700-800 lux
For fusing and ticketing
400-500 lux
Sewing For checking
900-1000 lux
For pressing Finishing Loading Normal Sewing trimming
500-600 lux
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3352
Findings Study 1 Survey
33
Average Lux department wise
National Institute of Fashion Technology
Department Wise LUX
Department Average LUX
Stores 120305
Cutting 32862
Sewing 29474
FinishingPackaging 27139
050
100
150
200
250
300
350
A v e r a g e L u x
Garment Industry Departments
Average LUX
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3452
National Institute of Fashion Technology34
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3552
35
Percentage of work area 51
National Institute of Fashion Technology
31854
2299
32777 3357
27024
050
100150200
250300350400
InspectionTable
Sewing AtNeedlePoint
Sewingbesidesneedlepoint
CenterTable
Ironing
A v e r a g e
L U X
Work Station in Sewing Floor
SEWING FLOOR Average LUX at various points
Work Center WiseAvg Lux
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3652
National Institute of Fashion Technology36
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3752
37
Percentage of light Electricity Consumption of companies
National Institute of Fashion Technology
Findings Study 1 Survey
Percentage of light Electricity Consumption of
companies
Factory units
Studied
of light electricity
consumption
Unit 1 2301
Unit 2 1145
Unit 3 1048
Unit 4 1043
Unit 5 1963
Unit 6 919
Unit 7 1263
Unit 8 1391
Average 1384
0
5
10
15
20
25
Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8
o
f l i g h t e l e c t r i c i t y
Companies
of light electricity
Represents buildings under oneelectricity bill
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3852
Findings
38
Average area covered by each light = 1724 sq ft Average window percent to floor area = 411
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 3952
Findings Continuedhellip
39
Analysis Excel Sheets Assumptions
Operating hours per day are eight
Limitations
Variables Work stationrsquos distance from the window and windows dimension
Day light entering from the window varies at various times of the day
Difference in actual number of tube lights in working condition
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4052
40
Observations amp Recommendations
Dirt on lights and casings Scheduled Cleaning
Reflectors amp Casing misaligned Re-align to proper
position
Focus of light on the work
Light over the sewing table gets blocked at the needle point
Lux reduced to 75
National Institute of Fashion Technology
Findings Study 1 Survey Continuedhellip
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4152
National Institute of Fashion Technology41
MODEL DEVELOPMENT
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4252
Solar Lighting System
42
Concept Various Parts and its functions
Drawings
Technical
3D figures
Theoretical efficiency
Hypothetical study (example)
Benefits amp Limitations
Future scope
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4352
Working Principle
43 National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4452
44
Drawings Technical
3 D
Working
National Institute of Fashion Technology
Solar Lighting System Working
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4552
45National Institute of Fashion Technology
Maximum Theoretical Efficiency
Surface Efficiency Type of Reflective Material
Lens 1 094 Silica Glass
Lens 2 094 Silica Glass
Reflector 1 085 Mirror
Reflector 2 085 Mirror
Reflector 3 085 Mirror
Reflector 4 095 Mirror
Reflector 5 095 Mirror
Reflector 6 095 Mirror
Reflector 7 095 Mirror
Reflector 8 095 Mirror
Efficiency42
Solar Lighting System Theoretical Efficiency
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4652
46National Institute of Fashion Technology
Solar Lighting System Costing
Sl No Name Raw Material Cost Rs
1 Base
20SWG SS SHEET 120 X
660 175
2 Servo motor Bought 850
3 Coupling SS 150
4 Bearing no 626 Bought 50
5 Vertical shaft SS ROD C20 X 360 255
6 Column SS 340
7 Bearing no 6002 Bought 75
8 Bearing housing SS 214
9 Bearing no 634 Bought 40
10 Motor shaft Teflon 150
11 Bearing housing 2 Teflon 130
12 Servo motor 2 Bought 850
13 Bearing no 608 Bought 70
14 Second lens holder Nylon 100
15 First lens holder Nylon 100
16 Reflector holder 1 Nylon 20
17 Reflector holder 2 Nylon 20
18 Reflector holder 3 Nylon 20
19 Nut bolt amp washer SS 40
20 Electronic circuit Self-made 2000
21 Other equipments Bought 350
22 LDR Bought 1800
Total 7799
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4752
Cost Benefit Analysis
47National Institute of Fashion Technology
Type of Cost Unit
Work Area 200000 sq m
Number of lights reqd for 600 lux 26093 count
Area covered by 1 setup 1750 sq m
Cost of 1 setup 500000 Rs
Total cost of 114 setup required 57142857 Rs
Tubelight + choke cost 5218605 Rs
Total setup cost + 3 failure cost 71669 Rs
Total cost 1413369 Rs
Return on Investment 3 years and 5 months
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4852
Cost Benefit Analysis
48
Minimum lumens available from sun = 25000lusqm(1800hrs)
Theoretical efficiency of model = 042
Lumens available at point of distribution = 10500lu
Area covered 1200 lux at point of work = 175m2
Average no of clear sky days in Ahmedabad= 250
Total reduction in light cost = 635
Total reduction in Electricity bill = 742
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 4952
49
Benefits Dependence on artificial light is reduced
Value of Color Rendering Index is increased
Cost of electricity bill is reduced
Recurring cost of light is reduced
The installation of the model doesnrsquot affect the existing buildingstructure
Limitations
The light cannot spread evenly
Heating up of transfer tubes is a big constraint Works during the day time only
Prototype
Depends on how big is the capturing glass amp reflecting mirror
National Institute of Fashion Technology
Solar Lighting System Benefits amp Limitations
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5052
50
The equipment can be used at other manufacturing facilities
Efficiency can be increased
National Institute of Fashion Technology
Conclusion Future Scope
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5152
References
51
Institutions National Productivity Council Gandhinagar
Gujarat Energy Development Agency Ahmedabad
Indian Institute of Technology Gandhinagar
National Institute of Design Ahmedabad
British Library
Books
Mottier Patrick LEDs for Lighting Applications Google Books
Web 28 Feb 2011
Schubert E Fred Light-emitting Diodes 2n ed Cambridge Google
Books Web 20 Feb 2011
Online Resources
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology
842019 External Jury Ppt
httpslidepdfcomreaderfullexternal-jury-ppt 5252
Thank You
National Institute of Fashion Technology