“HEAR IT AND FORGET IT, SEE IT AND REMEMBER IT, DO IT AND UNDERSTAND IT”
R12310: ME and ChemE Lab and Demo Hardware Development
DPM – Spring 2012
Presentation Outline
Functional DecompositionBenchmark ChartMetrics and SpecificationsHouse of QualityPRPs
Overview Objectives/Deliverables
Staffing ListFeedback from Customer MeetingQuestions
Functional Decomposition ME Demo
Constraints: Simple and easy to use, easily stored, assemble and disassemble quickly, minimal maintenance, meet budget, prevent injury
Functional Decomposition ChemE Lab Hardware
BenchmarkingSource TecQuiptment
Topic Heat Transfer
Size 650mm x 480mm
Measurement Capabilities
Linear, radial, surface heat transfer. Transfer through
liquids or gasses.
EquipmentTecQuiptment (TD1002) Heat
Transfer Device
Description
This device can be used to demostrate linear and radial heat conduction. It is also capable of demonstrating
surface heat transfer (conduction, convection and
radiation). Also, demonstrates heat conduction through liquids
and gasses. Calculation of thermal conductivity (k value).
Additonal Comments
Sound level less than 70 dB, 220 to 240V electic supply. Operating relative humidity
range: 80% at temperatures < 31°C decreasing linearly to
50% at 40°C
Benchmarking
Source Florida State University
Topic Extended Surfaces
Measurement Capabilities
Temperature profiles
Equipment
Cylindrical extended surface, thermocouples, constant temperature
bath, digital temperature indicator, switchbox, wind tunnel
Time lengthLab period about 2.5
hours
Description
The steady state temperature profile is recorded for varying
convective coefficients (i.e. the wind tunnel speed is increased)
Metrics and Specifications – ME Demo Hardware
*** Continued on next slide
Source Specification (metric) Unit of MeasureMarginal
ValueIdeal Value
Comments/Further Detail
S1 CN11 Demo viewing radius Meters >=7 >=11S2 CN11 Demo viewing angle Degrees 180 360S3 CN8 Auditory, visual, and written aspects Y/N YS4 CN1, CN5 Demo time length away from lecture time Minutes <=30 <=15
S5CN1, CN5, CN12,
CN16Demo running time length Minutes <=50
Length (m) <=1Height (m) <=1.25Width (m) <=0.75
S7 CN3, CN4, CN12Force required to start and continue
motion on a standard ME cartNewtons <=130 <=65
S8 CN3, CN4, CN19 Weight Newtons/Person <=170 <=130
S9 CN1, CN8, CN17 Student familiarity Percentage >=70Survey percentage of student familiar with
idea of device (min sample size of 20 students)S10 CN1, CN8 *Increase in historical average grade Percentage >=1 >=2
S11 CN1, CN17*Students recognize how demo applies
to "real life" applicationsPercentage >=50 >=70
Done via survey (min sample size of 20 students)
Length (m) >=0.5Height (m) >=0.75Width (m) >=0.5
S13 CN2, CN5,CN12 Time to disassemble/assemble Minutes <=10 <=5
S14 CN5, CN12 Time to read and understand Minutes <=30 <=20
S6
S12
Size envelope when assembledDemo size specification based on size needed
to fit through door adequately and fit on standard ME cart.
Size envelope when disassembled
CN11, CN16, CN19
CN12, CN19
Metrics and Specifications – ME Demo Hardware
S15 CN4 *Injuries per year # <=1 0
This will be done through reports. MSD team will not be able to measure this,
but device should be designed with safety in mind.
S16 CN1, CN13 Accurate results Percentage <=30 <=20Percentage deviation from analytical
values using a minimum sample size of
S17CN1,CN6, CN7,
CN9, CN10,CN14, CN15,CN18, CN20
Core academic topics satisfied Y/N Y
S18 CN2 *Maintenance required #/year <=2 <=1
S19 CN16Demos can be performed in classroom
w/o additional resourcesY/N Y
S20 CN1, CN13, CN15 Reproducible results Percentage <=15 <=10Results must fall within this range of
one another when 10 runs are S21 CN13 Accurate measurements Percentage <=20 <=5
*Disclaimer: MSD team will not be able to measure this, however, this objective should be kept in mind when designing the demo.
Metrics and Specifications – ChemE Lab Hardware
Metrics and Specifications – ChemE Lab Hardware
Metrics and Specifications – ChemE Lab Hardware
House of Quality – ME Demo Hardware
Needs & Metrics
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21
CN1 1 1 9 9 3 3 3 3CN2 3 9CN3 9 9CN4 3 3 9CN5 9 3 9 3CN6 9CN7 9CN8 9 1 9CN9 9
CN10 9CN11 9 9 9CN12 9 1 3 1 9 9CN13 9 3 3CN14 9CN15 3 3CN16 3 3 9CN17 9 9CN18 9CN19 9 9CN20 9
House of Quality – ChemE Lab Hardware
PRP #1: Extended Surfaces
Objectives Reinforce the basics of conduction and convection Increase student understanding of extended surfaces Demonstrate surface area’s impact on heat transfer Comparison of at least two different fin geometries or
tip conditionsDemo Hardware Capabilities
Measures ambient air temperature and temperature distribution along object
There will be a constant heat flux acting on the base of the fin, or the base will be held at a constant temperature
May be assisted with a DAQ software
PRP #2: Transient Heat Transfer
Objectives Enhance student comprehension of transient heat
transfer Demonstrate lumped capacitance, 1st term
approximation, and semi-infinite models Show temperature change over time
Demo Hardware Capabilities Measures temperature at different points of a
specimen, and measure the temperature of the surroundings
May be assisted with a DAQ software Areas allowing for creativity: specimen shape and
material, cooling or heating process
PRP #3: Free vs Forced Convection
Objectives Enhance student comprehension pertaining to
convection Demonstrate free and forced convection isolated from
one another Calculate convective coefficient, “h”
Demo Hardware Capabilities Measures ambient air temperature, temperature of
object, and fluid flow rate (for forced convection) May be assisted with a DAQ software Possible creativity with convective coefficient by
location and object geometry
PRP #4: Isentropic Efficiency
Objectives Demonstrate “real” system and compare to ideal
(isentropic) systemDemo Hardware
Shows concept of isentropic efficiency Uses a system that loses a measurable amount of energy Provides information needed for table look up and
calculations Temperature, Pressure, velocity
in out
PRP #5: Entropy
Objectives Demonstrate entropy through fluid diffusion
Demo Hardware Shows concept of entropy as related to fluid diffusion Shown for two scenarios
PRP #6: Chem E Lab Equipment
Objectives Demonstrate transient and steady state heat conduction Provide the means to measure thermal conductivity
Project Suggestions/Capabilities Equipment creates a one-dimensional thermal circuit
Equipment creates and maintains steady state conditions Equipment outputs temperature distribution and heat flux at
S.S.
Depending on staffing and budget, the equipment plots the temperature distribution as transient conduction approaches S.S. (DAQ software)
qR
T1 T2
q = ∆T/R
q ,∆T R R = f(geometry,k) k
PRP #7: Chem E Lab Integration
Objectives Fully integrate the apparatus developed by the Chem
E Lab Equipment team into Chemical Principles Lab I.3 segments of lab integration
Facilities Preparation Adequate power sources/workstations Water lines
Data Acquisition Sufficient computers with DAQ software
Equipment Integration Assembly timeframe/instruction Ergonomic review
Staffing
Mechanical Engineers (2-4 per project) Background in demo topic preferred
Thermodynamics Heat transfer
Designing (CAD, Stress analysis (ANSYS), etc) Manufacturing/Assembly Labview/DAQ Experience (Demo dependent) Thermo and Structural Analysis
Industrial Engineer (1) Ergonomics Safety Statistical Analysis Project Management Instruction manual design (Process design)
Customer Feedback – ME Demo Hardware
Dr. Stevens Combine heat transfer demos into one project Create shared DAQ software and equipment Models should be at steady state Add specification for accuracy of measurements
Prof. Landschoot Entropy idea evaluation – interested in pursuing
further Feasibility evaluation – plausible
Customer Feedback – ChemE Lab Hardware
Professor Gregorius and Dr. Koppula Specifications are well written, but narrow the scope of
the project too much – heat transfer could be radial and 1D
Temperature specifications were changed to percent deviation at steady state (EM1, EM2)
Diameter and length specifications were combined, does the equipment adapt for different sizes? – binary (EM6)
Ideal and marginal values were given for time to reach S.S. (EM4)
Given the materials that will be used as specimens, better defined the range of acceptable k values (EM8)
Questions?