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Experimental study on the influence of porous foam metal filled in the core flow region on the performance of thermoelectric generators

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  • Li, Yanzhe
  • Wang, Shixue
  • Zhao, Yulong
  • Lu, Chi

Abstract

Semiconductor thermoelectric generator technology is a new type of power generation technology. The use of semiconductor thermoelectric power generation technology for automobile exhaust heat recovery and utilization can effectively improve energy efficiency. In this study, a test system is set up to simulate the automobile exhaust, and the effect of core flow heat-transfer enhancement on the performance of the thermoelectric generator is investigated using thermoelectric module Bi2Te3 to recover the waste heat from automobile exhaust and convert it into electrical energy. The results show that filling foam metal can significantly improve the performance of the generator. The convective heat-transfer coefficient of the channel increases by four times, and the output power of the thermoelectric generator is doubled when the intake flow rate is 120m3/h, the inlet temperature is 300°C, the pore density of the foam metal is 20 pores per inch, and the filling rate of the foam metal is 75%. In addition, the improvement in the performance of the generator is different under different intake air flows, different foam-metal filling rates, and different pore densities.

Suggested Citation

  • Li, Yanzhe & Wang, Shixue & Zhao, Yulong & Lu, Chi, 2017. "Experimental study on the influence of porous foam metal filled in the core flow region on the performance of thermoelectric generators," Applied Energy, Elsevier, vol. 207(C), pages 634-642.
    • Handle: RePEc:eee:appene:v:207:y:2017:i:c:p:634-642
    DOI: 10.1016/j.apenergy.2017.06.089
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    References listed on IDEAS

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    Cited by:

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    6. Li, Yanzhe & Wang, Shixue & Zhao, Yulong & Yue, Like, 2022. "Effect of thermoelectric modules with different characteristics on the performance of thermoelectric generators inserted in the central flow region with porous foam copper," Applied Energy, Elsevier, vol. 327(C).
    7. Yang, Wenlong & Zhu, WenChao & Du, Banghua & Wang, Han & Xu, Lamei & Xie, Changjun & Shi, Ying, 2023. "Power generation of annular thermoelectric generator with silicone polymer thermal conductive oil applied in automotive waste heat recovery," Energy, Elsevier, vol. 282(C).
    8. Zhao, Yulong & Wang, Shixue & Ge, Minghui & Li, Yanzhe & Liang, Zhaojun & Yang, Yurong, 2018. "Performance analysis of a thermoelectric generator applied to wet flue gas waste heat recovery," Applied Energy, Elsevier, vol. 228(C), pages 2080-2089.
    9. Ge, Minghui & Li, Zhenhua & Zhao, Yuntong & Xuan, Zhiwei & Li, Yanzhe & Zhao, Yulong, 2022. "Experimental study of thermoelectric generator with different numbers of modules for waste heat recovery," Applied Energy, Elsevier, vol. 322(C).
    10. He, Wei & Guo, Rui & Takasu, Hiroki & Kato, Yukitaka & Wang, Shixue, 2019. "Performance optimization of common plate-type thermoelectric generator in vehicle exhaust power generation systems," Energy, Elsevier, vol. 175(C), pages 1153-1163.
    11. Zhao, Yulong & Lu, Mingjie & Li, Yanzhe & Wang, Yulin & Ge, Minghui, 2023. "Numerical investigation of an exhaust thermoelectric generator with a perforated plate," Energy, Elsevier, vol. 263(PB).

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