R12310: ME and ChemE Lab and Demo Hardware Development DPM – Spring 2012

1. R12310: ME and ChemE Lab and Demo Hardware DevelopmentDPM – Spring 2012 “Hear it and forget it, See it and remember it, do it and understand it”

2. Presentation Outline • Functional Decomposition • Benchmark Chart • Metrics and Specifications • House of Quality • PRPs • Overview • Objectives/Deliverables • Staffing List • Feedback from Customer Meeting • Questions

3. Functional Decomposition ME Demo Constraints: Simple and easy to use, easily stored, assemble and disassemble quickly, minimal maintenance, meet budget, prevent injury

4. Functional Decomposition ChemE Lab Hardware

5. Benchmarking

6. Benchmarking

7. Metrics and Specifications – ME Demo Hardware *** Continued on next slide

8. Metrics and Specifications – ME Demo Hardware

9. Metrics and Specifications – ChemE Lab Hardware

10. Metrics and Specifications – ChemE Lab Hardware

11. Metrics and Specifications – ChemE Lab Hardware

12. House of Quality – ME Demo Hardware

13. House of Quality – ChemE Lab Hardware

14. 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 conditions • Demo 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

15. 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

16. 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

17. PRP #4: Isentropic Efficiency • Objectives • Demonstrate “real” system and compare to ideal (isentropic) system • Demo 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 out in

18. PRP #5: Entropy • Objectives • Demonstrate entropy through fluid diffusion • Demo Hardware • Shows concept of entropy as related to fluid diffusion • Shown for two scenarios

19. 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 q = ∆T/R q T1 T2 R • 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) q ,∆T R R = f(geometry,k) k

20. 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

21. 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)

22. 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

23. 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)

24. Questions?