Investigation of heat transfer in a thermoelectric cooling system

The paper presents the results of measurements and calculations for key parameters of a thermoelectric cooling system. Measurements on temperature and electrophysical parameters at different temperature conditions and operation modes defined the values of heat exchanger’s thermal resistance, cooling capacity, and cooling coefficient of performance and temperature drops in the constructive parts. Heat transfer processes in a model are described through integral relations with the account for measured working characteristics of a thermoelectric unit and thermal resistances of heat supply/removal devices. Results of analysis suggest recommendations for a range of current for a thermoelectric unit that provide high values for cooling capacity, cooling coefficient of performance and optimal economic aspects of the cooling system.