Open AccessTHERMOELECTRIC HEAT EXCHANGER - HEAT TRANSMISSION INTENSIFIER FOR MAINTAINING A THERMAL REGIME IN ELECTRONIC SYSTEMS
Author(s) -
Sh. A. Yusufov
Publication year - 2020
Publication title -
vestnik dagestanskogo gosudarstvennogo tehničeskogo universiteta. tehničeskie nauki
Language(s) - English
Resource type - Journals
eISSN - 2542-095X
pISSN - 2073-6185
DOI - 10.21822/2073-6185-2020-47-1-48-57
Subject(s) - thermoelectric effect , thermoelectric cooling , heat transfer , heat exchanger , thermoelectric generator , nuclear engineering , heat spreader , mechanical engineering , materials science , mechanics , thermodynamics , engineering , physics
. Aim. The article presents a thermoelectric heat exchanger / heat transfer intensifier design for ensuring the thermal regime of electronic equipment located in external installations. Method. Methods for modelling heat exchange processes were applied. Result. A thermoelectric system is proposed, consisting of a heat exchanger / heat transfer intensifier component located in an external installation. In structural terms, the external installation comprises a compartment disposing electronic heatgenerating components, in which are located channels for ventilating external air, while a second compartment contains elements that require to be sealed from external influences, in cluding contact with external cooling air. A mathematical model is provided for determining the temperature of air flows from the heatexchange surfaces of a thermoelectric system (TES), as well as the limiting length of a thermoelectric system to achieve equal output temperature at given supply currents of thermoelectric batteries. Conclusion. On the basis of the conducted studies, it is concluded that a longer thermoelectric system for ensuring the intensification mode corresponds to an increased difference in the temperature of the coolant at the inlet. The temperature of the air flow at the outlet becomes lower with a further increase in length due to the thermoelectric heat exchanger entering the operating mode of the thermoelectric refrigeration unit.