A Model of Heat Transfer in Counter-Current Heat Exchanger with a Thermoelectric Cooling Element

IGOR BATARONOV, ALEXANDER KRETININ, VLADIMIR SELIVANOV, EKATERINA SPYTSINA, TATJANA NADEINA

Abstract


In disregard of conductive transfer in heat-transfer agents and using the Newton- Richman law, a model of heat transfer in a counter-current exchanger with a thermoelectric cooling element. The heat transfer coefficient of the thermoelement branch, the average temperature of the heat-transfer agents at the entrance to the heat exchanger, as well as the average length of heat transfer between the coolant and the thermoelement are chosen as the conversion scales to dimensionless variables. The model is converted to a form containing only coolant temperatures, and the General solution of the model is obtained. The study of the model found that the cooling capacity of the heat exchanger varies along the flow of the coolant and with an increase in the density of the electric current becomes negative at the initial heat exchange section.

Keywords


heat transfer, thermoelectric element, current heat exchangerText


DOI
10.12783/dteees/tpcase2018/30388

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