Численное моделирование интенсификации теплообмена в каналах термоэлектрической генераторной установки

Abstract

This article discusses some options for improving the efficiency of an experimental thermoelectric generator set designed to study, design and create power plants of this type, during direct operation of which there are no fuel combustion processes intended for power supply to industrial consumers located at a considerable distance from the centralized power supply, and namely, objects of production, distribution and transportation of natural gas, a schematic diagram of the mentioned power plant is shown, the principle of operation and the main advantages of its application are described. Improving the efficiency of the installation in the present study consists in intensifying heat transfer in profiled channels of rectangular cross section, through which flows of gaseous coolant with different temperatures are supplied. Several variants of the possible heat transfer intensification are shown, which consist in the implementation of intensifiers inside the channels in the form of transverse solid partitions, alternately changing the direction of the coolant movement. In the presented study, numerical simulation of several variants of heat transfer intensification with different geometric dimensions of the flow section of profiled channels and transverse baffles installed in these channels was carried out. In conclusion, the results of the numerical simulation are shown, the effectiveness of the methods used is evaluated, of which the most optimal one is selected.