Analysis of the Parameters of the Two-Sections Hot Side Heat Exchanger of the Module with Thermoelectric Generators

Mirosław Neska, Mirosław Mrozek, Marta Żurek-Mortka and Andrzej Majcher
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Mirosław Neska: Łukasiewicz Research Network—Institute for Sustainable Technologies, 26-600 Radom, Poland
Mirosław Mrozek: Łukasiewicz Research Network—Institute for Sustainable Technologies, 26-600 Radom, Poland
Marta Żurek-Mortka: Łukasiewicz Research Network—Institute for Sustainable Technologies, 26-600 Radom, Poland
Andrzej Majcher: Łukasiewicz Research Network—Institute for Sustainable Technologies, 26-600 Radom, Poland

Energies, 2021, vol. 14, issue 16, 1-15

Abstract: One of the methods of converting thermal energy into electricity is the use of thermoelectric generators (TEG). The method can be used in low-temperature waste heat conversion systems from industrial installations, but its serious limitation is the low efficiency of thermolectric generators and the relatively low power of the electric waveforms obtained. Increasing the obtained power values is done by multiplying the number of TEGs used, grouped into modules (MTEG). In such systems, the design of the module is extremely important, as it should ensure the best possible heat transfer between both sides of the TEG (hot and cold), and thus obtaining maximum electrical power. The article presents an analysis of a two-section flat plate heat hot side exchanger MTEG. The key parameters like effectiveness of exchange and MTEG efficiency and their impact on the efficiency of heat use and generated electric power were indicated. The tests showed an improvement in these main system parameters for the mixed cycle (co-current and countercurrent—inward direction) of the hot side heat exchanger, compared to the countercurrent flow in both sections of this exchanger.

Keywords: thermoelectric generators; heat exchangers; waste heat; thermocouple (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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