This article is cited in 1 paper

XVII Interstate Conference ''Thermoelectrics and Their Applications -- 2021" (ISCTA 2021 St. Petersburg, September 13-16, 2021)

Contribution of the distributed Peltier effect to the efficiency of the thermoelectric cooler branch

O. I. Markov

Orel State University, 302026 Orel, Russia

Abstract: An attempt is made to calculate the contribution of the distributed Peltier effect to the efficiency of the branch of the thermoelement $Z$ for various types of impurity distribution. For this purpose, the boundary problem of thermal balance in the branch of the thermoelectric element was solved numerically, taking into account the distributed Peltier effect. The case of non-degenerate charge carriers was considered within the framework of the standard two-band model. The parameters of charge carriers were selected close to thermoelectrics based on bismuth and antimony tellurides. As the calculation in the framework of the two-zone model showed, the use of the distributed Peltier effect leads only to partial absorption of Joule heat, which contributes to an increase in the overall efficiency of the branch. In this case, the $Z$ parameter along a significant part of the branch takes values significantly less than the maximum value.

Keywords: thermoelement, Peltier effect, thermoelectric efficiency parameter, standard two-zone model.

Received: 19.09.2021
Revised: 24.09.2021
Accepted: 24.09.2021

DOI: 10.21883/FTP.2022.01.51811.27

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