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Lateral comparison of the coupling parameters on the novel hexagonal shaped cross flow thermoelectric generator

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  • Zhang, Ran
  • Zhang, Hui
  • Wang, Xu

Abstract

Vehicle exhaust pipe is an excellent heat source and its integration with thermoelectric generators for thermo-electrical conversion has been recently attracting much attention. The methods of increasing power output include the parameter optimizations of the thermoelectric module material, thermoelectric module geometrical shape and exhaust gas property. Because of the coupling nature of these parameters, however, there is a lack of lateral comparison providing with the idea of which parameter gives the largest effect and which parameter combination gives the best power output performance. For this purpose, a novel hexagonal shaped housing has been developed for an engine exhaust thermoelectric generator unit to contain thermoelectric modules with higher temperature difference. The concept of hexagonal shaped housing provides a larger contact area which will increase the temperature differences applied on the hot and cold sides of the thermoelectric module. The thermoelectric generator unit performance has also been improved by the concept of the cross flow which will enlarge the high temperature difference area. Built with these two new concepts, an innovative engine exhaust thermoelectric generator unit has been designed, fabricated and tested.

Suggested Citation

  • Zhang, Ran & Zhang, Hui & Wang, Xu, 2021. "Lateral comparison of the coupling parameters on the novel hexagonal shaped cross flow thermoelectric generator," Energy, Elsevier, vol. 215(PB).
    • Handle: RePEc:eee:energy:v:215:y:2021:i:pb:s0360544220322702
    DOI: 10.1016/j.energy.2020.119163
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    2. Ge, Ya & Lin, Yousheng & He, Qing & Wang, Wenhao & Chen, Jiechao & Huang, Si-Min, 2021. "Geometric optimization of segmented thermoelectric generators for waste heat recovery systems using genetic algorithm," Energy, Elsevier, vol. 233(C).

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