Energy recovery is gaining importance in various transportation, industrial process, and military applications because of rising energy costs and geopolitical uncertainties impacting basic energy supplies. Various advanced energy recovery/conversion technologies will require high-performance heat transfer characteristics to achieve energy recovery performance targets and requirements. System analysis of thermoelectric (TE) systems quantify potential power output, conversion efficiency, specific power and power flux in a unique, useful format on maximum efficiency — power maps. Lines constant specific power and power flux and their relationship to lines of constant hot side temperature and points of maximum power are demonstrated. Regions of preferred TE design are associated with not only higher conversion efficiency, but higher specific power and power flux that drives TE conversion designs towards use of microtechnology solutions. Water and He gas microchannel designs are investigated as potential solutions to achieve miniature TE energy recovery systems. Developing high-heat-flux thermal designs using microtechnology are key to enabling miniature energy recovery systems and should occur in parallel with ongoing research in advanced energy conversion materials.
- Advanced Energy Systems Division and Solar Energy Division
Microtechnology: A Key to System Miniaturization in Advanced Energy Recovery and Conversion Systems
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Hendricks, TJ. "Microtechnology: A Key to System Miniaturization in Advanced Energy Recovery and Conversion Systems." Proceedings of the ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASME 2008 2nd International Conference on Energy Sustainability, Volume 2. Jacksonville, Florida, USA. August 10–14, 2008. pp. 153-163. ASME. https://doi.org/10.1115/ES2008-54244
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