Post on 24-Feb-2016
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Team 10Air Conditioning
Experiment• Members
– Sean Gallagher– Pamela McDowell– Brian Davison– Prathana Vanarath
• Sponsors– Dr. Wexler– Dr. Advani
• Advisor– Dr. Keefe
Presentation Overview• Introduction• Method
– Concept Generation– Concept Selection
• Schedule & Budget• Questions
Project Background New Curriculum for Mechanical
Engineers “ME 2000 Curriculum”
• Joint Laboratory Classes for Thermodynamics and Heat Transfer classes
• We must investigate 2 aspects of this issue:– Single lab apparatus for multiple labs
(Hardware)– Increased understanding of Thermodynamic and
Heat Transfer fundamentals (Lab Experiments)
Mission
• Design a set of thermodynamic and heat transfer experiments for the University of Delaware Mechanical Engineering Undergraduate Laboratory, using a window air conditioner, that will be completed by April for approximately $4000.
Approach1 Identifying
customer(s)– wants– needs – constraints.
2 Benchmark to identify – competitors – metrics – possible solutions.
3 Generate concepts
4 Compare, eliminate, expand and synthesize possible solutions based on the metrics.
5 Proceed to a Go/No-Go review of the concepts. Build and test a prototype.
Customers Wants ¶ Dr. Wexler Dr. Advani Undergraduate students
Graduate students Judy Green: Educational Dr. Sun William Davison Manufacturers:
Hampden, Armfield Ltd. Other Schools: Georgia
Tech, Penn State
¶ Effective learning tool Easy to Use Self Evident Easy to set up Cost Effectiveness Multiple Purposes LabView compatible data
acquisition
Forgiving of incompetence Quiet Quick
Constraints (Prioritized)• Portable
• Schedule dictated by NCDA• Budget set by Sponsor• Separation of Project set by
Sponsor
Concept
Sub-Concept Sub-Concept
CategoryCategory Category Category
Sub-Category
Sub-Category
Sub-Category
Sub-Category
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Sub-Category
Sub-Category
Sub-Category
Problem Description• Hardware
– Develop a lab apparatus using a window air conditioner and sensors
– Develop a Data Acquisition Program
• Lab Experiments
– Develop a set of experiments that include a variety of Thermodynamic and Heat Transfer Principles
Systems Benchmarking(Major Competitors)
• Hampden Basic Refrigeration Cycle Trainer• Hampden Basic Refrigeration Cycle and Heat
Pump Trainer• Hampden Refrigeration Demonstrator• Hampden Heat Pump Trainer• Armfield Heat Exchanger Training Equipment
Series• Armfield Heat Transfer Teaching Equipment Series• Armfield Temperature Measurement Bench• Others
Functional Benchmarking• Omega Engineering - Sensors
– Carries every type of sensor we will require– Catalogs are an excellent technical reference
• Optrand - Sensors– Fiber-optic pressure transducer
• Air Conditioning Manufacturers - AC units• University of Delaware HVAC - sample AC
Metrics• Easy to Use
– Visible Components
• Physically look at chosen apparatus and rate 1 - 10, target value 10.
– Accessible Components
• same as above
• Cost Effectiveness– Low initial price
• Target value $4000– Low operating cost
• Target value $22.– Durable
• Target value 10 years
– Parts availability• Target value: 2 week
lead time
Metrics Cont’d• Self Evident
– Clear Lessons/Objectives
• Survey scored 1 - 5: target value 5
– Logical Procedure• Survey scored 1 - 5:
target value 5• Quiet
– Low noise level• Target value of 60 dB
• Effective Learning Tool– Fun– Number of Fundamentals– Clear Lessons/Objectives– Real World Connection to
Students– Keeps Students’ Interests– Hands-on/Interactive
• All are evaluated yes or no, the target value is yes.
Metrics Cont’d• Quick
– Time• Target Value within set
lab time (2 hrs)• Easy Maintenance
– Parts visibility• Physically look at chosen
apparatus and rate 1 - 10, target value 10.
– Parts availability• Target value: 2 week
lead time
• Forgiving of Incompetence– Years of experience
• Target value 2 years engineering experience
• Easy to set up– Time
• Target value 15 minutes
– Self Contained• Target value 1
Concept Generation and SelectionConcept
Lab Reports Hardware
Overall Presentationof
Experiments
Number of
Experiments
SensorsPresentationof
Lab ReportsApparatus
Concept Generation and Selection
Number of Experiments
1 Experiment 4-7 Experiments
13 Experiments
Number of ExperimentsGeneration and Selection
4 - 7 Experiments– Easy to set up– More effective learning
tool than and Multiple Purposes
¶ One Experiment using different sensors– Not an effective
learning tool– Difficult to set up
13 Experiments– Easy to set up– More effective learning tool than – Multiple Purposes
Concept Generation and Selection
Overall Presentationof Experiments
By Component By Fundamental
Overall Presentation of Experiments
Generation and Selection¶ By Fundamental
– Self Evident: clear lessons
– Quick: can be completed in lab time
By Component– Self Evident: clear
lessons– Quick: can be
completed in lab time
– More effective learning tool than
Concept Generation and Selection
Presentationof Lab Reports
StandardLab Reports
Short Lab Reports+
Technical Paper
Presentation of Lab Reports
Generation and Selection¶ Standard Lab
Reports– Self Evident: clear
lessons
Short Lab Reports & Technical Paper– Self Evident: clear
lessons – More effective
learning tool than
Concept Generation and Selection
Apparatus
Air ConditioningUnit
Other
ApparatusGeneration and Selection
¶ Other– Quick: can be
completed in lab time
– Easy to set up: can be set up in less than 15 min.
Air Conditioning Unit– Quick: can be
completed in lab time– Easy to set up: can be
set up in less than 15 min.
– More effective learning tool than
– More self evident than
– Easier to use than – More cost effective
SensorsGeneration and Selection
¶ Fully Instrumented with Redundancy– Most expensive
Fully Instrumented without Redundancy– Most feasible
Economically Instrumented– Least expensive but sacrifices
functionality
Updated Concept Flow-ChartConceptLab Reports Hardware
1 Experiment4-7Experiments13ExperimentsNumber ofExperiments OverallPresentationofExperiments Presentation ofLab Reports Apparatus SensorsBy ComponentByFundamental
StandardLab ReportTechnicalPaperAC unitOther
Final Concept Selection• Number of
Experiments– 4 - 7 Experiments
• Overall Presentation of Experiments– By Components
• Apparatus– Air Conditioning Unit
• Presentation of Lab Reports– Short Lab Reports
& Technical Paper
• Sensors– Fully Instrumented
without Redundancy
Working Model• Lab Experiments
– See Handout
• Air Conditioner– See apparatus
Actual Progress• Wanted to be here:
– Develop Heat Transfer Lab Fundamentals
– Develop Thermodynamic Lab Fundamentals
– Investigate Educational Values/Criteria
– Evaluate Key Equations– Obtain Sample Air
Conditioner for Study– Examine Possible Sensor
Placements
• We are here:– Applied Heat Transfer
fundamentals to labs– Applied Thermodynamic
fundamentals to labs– Researched and applied these
values to labs– Lab write-ups made– Sample Air Conditioner used
in determining labs– Possible locations determined
Not Too Detailed Schedule• January
• February– Compile and finalize lab manuals– Select and purchase required equipment
• March– Assemble lab apparatus– Test and evaluate labs
• April– Complete project
Estimated BudgetUnit Unit Price Quantity Total Price
Air Conditioner 250.00$ 1 250.00$
Lab Cart 100.00$ 1 100.00$
Relative Hum idity S ensor 225.00$ 4 900.00$
M ass F low Sensor 1,000.00$ 2 2,000.00$
Thermocouples 25.00$ 12 300.00$
Pressure Transducer 200.00$ 8 1,600.00$
Various Pipe Fittings 10.00$ 10.00$
W iring and Connectors 10.00$ 10.00$
M isc. Fabrication Costs 25.00$ 25.00$
Estim ated Budget 5,195.00$
Fully InstrumentedEstim ated Budget: Team 99.10, ME Air Conditioning Lab
Concluding Remarks