Нові аспекти фізики термоелектричного охолодження

Abstract

Models of thermoelectric refrigerators of the Peltier model in which the branches of p - and n - conductivity are located in a line and are connected to each other by means of a copper jumper. The temperature of the joints of the branches between each other and between the branches and the copper jumper are calculated. Calculations are made using the package of mathematical programs MAPLE. Temperature dependences of Т1 and Т2 on the density of electric current are obtained for two cases. An estimation of cooling depth of these devices is carried out. The effect of Thomson's effect on these temperatures has also been studied. The presented results of calculations require experimental confirmation and deepening of theoretical studies: it is necessary to carry out more in-depth studies of the issues raised in the article in order to find out the mechanisms of cooling, selection of thermoelectrics, and the geometric dimensions of the structural elements of refrigerators. The article analyzes the obtained results, provides practical recommendations.