P09451 Final Project Review Bryan McCormick (ME) Project Manager Andy Freedman (ME) Heat Transfer/Fluids Analysis & Design John Kreuder (ME) Thermal Modeler Ken McLoud (ME) Structural Designer Jon Holdsworth (EE) Electrical System Designer Gabriela Santa Cruz (IE) Engineering Economics Sponsored by:
Previous System
Project Description Improved test stand for studying thermo-electric modules Improved test stand for studying thermo-electric modules High Level Customer Needs: High Level Customer Needs: Implement air-cooling on cold side of thermo-electric array in addition to the water-cooling system. Implement air-cooling on cold side of thermo-electric array in addition to the water-cooling system. Be able to experimentally validate thermoelectric system models and enable more parameters to be explored. Be able to experimentally validate thermoelectric system models and enable more parameters to be explored. Improve user interface and data acquisition to allow greater ease of use of the test stand. Improve user interface and data acquisition to allow greater ease of use of the test stand. Improve set-up and shut-down procedures to reduce assembly times Improve set-up and shut-down procedures to reduce assembly times
System Architecture
Piping
Piping Valves for Air/H2O Interchange
Power Unit Improved Tool Clearance Force Sensors
Power Unit 4 zones Interchangeable Fins
Power Unit
Permanently Mounted Thermocouples
Current Status Assembly complete Assembly complete Labview complete Labview complete System test incomplete System test incomplete
Current Status On target to meet budget On target to meet budget Melcor thermoelectric modules still outstanding Melcor thermoelectric modules still outstanding Wire to arrive today Wire to arrive today Schedule: Schedule: Design completed on schedule Design completed on schedule Machining/Assembly took much longer than anticipated Machining/Assembly took much longer than anticipated Testing not yet complete Testing not yet complete
Current System
Test Results System is operational System is operational More testing is required to prove functionality More testing is required to prove functionality
Successes/Failures Successes User Interface Improvements User Interface Improvements Cross-flow air cooling Cross-flow air cooling Ability to interchange air cooling and water cooling Ability to interchange air cooling and water cooling Addition of 4th zone Addition of 4th zone Additional temperature measurements Additional temperature measurements Temperature measurements at inlet and outlet of each zone Temperature measurements at inlet and outlet of each zone Additional pressure measurements Additional pressure measurements Elimination of manual measurements Elimination of manual measurements Consistent positive positioning of thermocouples Consistent positive positioning of thermocouples Additional tool clearance on components of power module Additional tool clearance on components of power module Safety shutoff sensor for heater Safety shutoff sensor for heater Multiple heat sinks Multiple heat sinks Failures MOSFET power-tracking system Inability to use control system for peak power (due to MOSFETs) Machining time underestimation Insufficient time for testing
Questions?