ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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3
Issue
vol 60 / MARCH, 2017
Article
UDC 621.362.1

MATHEMATICAL MODELING OF OPERATION OF LOW-TEMPERATURE COOLING THERMOELEMENTS

O. I. Markov
Oryol State University, Department of Theoretical Physics and Mathematical Modelling; Professor


Abstract. Results of numerical modeling of operation of low-temperature thermoelements in maximal temperature difference mode are presented. The boundary value problem is solved for stationary thermal conductivity of thermoelement branches with temperature-dependent kinetic factors. Comparison is performed for efficiency of a р-branch thermoelement from bismuth telluride with that of a passive branch thermoelement from a hightemperature superconductor. Influence of contact resistance on thermocouple efficiency is taken into account.
Keywords: cooling thermoelement, superconductor, compound branch, contact resistance.