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Thermoelectric Solar Power Generation for Space Applications

Thermoelectric Solar Power Generation for Space Applications. Jeff Ely Angel Henderson. Introduction. Team members include Jeff Ely and Angel Henderson from the Old Dominion University MAE department, Iseley Marshall from the University of South Dakota in material science,

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Thermoelectric Solar Power Generation for Space Applications

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  1. Thermoelectric Solar Power Generation for Space Applications Jeff Ely Angel Henderson

  2. Introduction Team members include Jeff Ely and Angel Henderson from the Old Dominion University MAE department, Iseley Marshall from the University of South Dakota in material science, Dr Jin Ho Kang research staff at the NIA in cooperation with NASA Langley. And the help of a few other NIA and NASA staff

  3. Problem + solution Problem definition Expensive maintenance High deployment costs Harsh environmental conditions High sustainability requirement Design Criteria Lightweight Flexible Cheap materials

  4. WHY thermoelectric? Conventional photovoltaic's Heavy Fragile Expensive Sustainable Thermoelectric panels could be much better suited for space applications by improving each factor.

  5. Design concept • Light-weight • Flexible • Cheap materials

  6. Spring and summer 2011

  7. Testing phase Effects of each coating were tested individually on conventional thermoelectric modules at 1 sun intensity (100mW/cm2) Control – no coating Low emissivity top side High absorptivity top side High emissivity bottom side

  8. Test Setup Photo of testing apparatus

  9. Test Setup Thermocouple #1 Room temperature Thermocouple #2 3 inches above TE module Thermocouple #3 Top surface of TE module Thermocouple #4 Bottom surface of TE module Thermocouple $5 3 inches below TE module

  10. Labview Features for project • Programs Figures: • Real time data creates a graph with custom axes • Data stored in database in real time • 6300 readings for temperature, voltage, and current.

  11. Labview Features for project Figure 1-10 The lab view software that record the experiment data in real time

  12. Solar cell testing

  13. Example Data at 0˚C

  14. Example Data at 0˚C

  15. Results summarized Results show the validity of the design concept!

  16. Manufacturing process Obstacles Electrical grid slip Small size High precision requirement

  17. Manufacturing Process Utilizing a template • Place semiconductor blocks • silver based epoxy • Aluminum electrical network • Place polyamide surface with epoxy • Flip TE, remove template • Repeat on other side • Apply coatings

  18. Manufacturing process Use of a template Aids in the manufacturing Dealt with printer imprecision Template revision process Final product

  19. Manufacturing process 2.5 2.8 2.2 3.2 3.4 3.0 Printer Test piece

  20. Manufacturing process Design Changes 3.1mm square hole 6mm boundary

  21. Manufacturing process The Deliverable

  22. Gantt Chart

  23. Questions?

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