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Materials 2018, 11(6), 966; https://doi.org/10.3390/ma11060966

Testing and Optimizing a Stove-Powered Thermoelectric Generator with Fan Cooling

1
Department of Energy and Environment System Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
2
Hangzhou YiNeng Power Technology Corporation Limited, Hangzhou 310014, China
*
Author to whom correspondence should be addressed.
Received: 18 May 2018 / Revised: 4 June 2018 / Accepted: 4 June 2018 / Published: 7 June 2018
(This article belongs to the Special Issue Recent Advances in Thermoelectric Materials)
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Abstract

In order to provide heat and electricity under emergency conditions in off-grid areas, a stove-powered thermoelectric generator (STEG) was designed and optimized. No battery was incorporated, ensuring it would work anytime, anywhere, as long as combustible materials were provided. The startup performance, power load feature and thermoelectric (TE) efficiency were investigated in detail. Furthermore, the heat-conducting plate thickness, cooling fan selection, heat sink dimension and TE module configuration were optimized. The heat flow method was employed to determine the TE efficiency, which was compared to the predicted data. Results showed that the STEG can supply clean-and-warm air (625 W) and electricity (8.25 W at 5 V) continuously at a temperature difference of 148 °C, and the corresponding TE efficiency was measured to be 2.31%. Optimization showed that the choice of heat-conducting plate thickness, heat sink dimensions and cooling fan were inter-dependent, and the TE module configuration affected both the startup process and the power output. View Full-Text
Keywords: thermoelectric generator; power load feature; thermoelectric efficiency; optimization thermoelectric generator; power load feature; thermoelectric efficiency; optimization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zheng, Y.; Hu, J.; Li, G.; Zhu, L.; Guo, W. Testing and Optimizing a Stove-Powered Thermoelectric Generator with Fan Cooling. Materials 2018, 11, 966.

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