Advanced Thermoelectric Materials for Efficient Waste Heat Recovery in Process Industries

Adam Polcyn ; Moe Khaleel

关键词: COMBUSTION;    EFFICIENCY;    ELECTRICITY;    GLASS;    HEAT PIPES;    MELTING;    PERFORMANCE;    POWER GENERATION;    THERMOELECTRIC GENERATORS;    THERMOELECTRIC MATERIALS;    WASTE HEAT NESDPS Office of Nuclear Energy Space and Defense Power Systems;    industrial waste heat recovery;    thermoelectric generation;    thermoelectric materials;    heat pipe;   

DOI  :  10.2172/944968
RP-ID  :  DOE/GO/14044-1
PID  :  OSTI ID: 944968
Others  :  TRN: US200903%%41

美国|英语

来源: SciTech Connect

【 摘 要 】

The overall objective of the project was to integrate advanced thermoelectric materials into a power generation device that could convert waste heat from an industrial process to electricity with an efficiency approaching 20%. Advanced thermoelectric materials were developed with figure-of-merit ZT of 1.5 at 275 degrees C. These materials were not successfully integrated into a power generation device. However, waste heat recovery was demonstrated from an industrial process (the combustion exhaust gas stream of an oxyfuel-fired flat glass melting furnace) using a commercially available (5% efficiency) thermoelectric generator coupled to a heat pipe. It was concluded that significant improvements both in thermoelectric material figure-of-merit and in cost-effective methods for capturing heat would be required to make thermoelectric waste heat recovery viable for widespread industrial application.