Promising Heat Exchangers with Diffuser Channels


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This review article presents the most significant results of a numerical study of processes in heat exchangers with diffuser channels obtained by the authors for the period 2020-2024. Plate heat exchangers and «tube-in-tube» heat exchangers with various gas and liquid heat carriers are considered. The conducted studies have shown that due to the intensification of heat exchange in heat exchangers with diffuser channels, the amount of heat transferred from the «hot» coolant to the «cold» increases in comparison with heat exchangers with smooth channels of constant cross-section. The results obtained can serve as a basis for the development of new promising heat exchangers.

plate heat exchanger, «tube-in-tube» heat exchanger, diffuser channels, RANS turbulence model.

DOI: http://doi.org/10.33257/PhChGD.25.6.1126


Volume 25, issue 6, 2024 year


Перспективные теплообменники с диффузорными каналами

В настоящей обзорной статье представлены наиболее значимые результаты численного исследования процессов в теплообменниках с диффузорными каналами, полученные ав-торами за период 20202024 годы. Рассмотрены пластинчатые теплообменники и теп-лообменники «труба в трубе» с различными газовыми и жидкими теплоносителями. Проведенные исследования показали, что за счет интенсификации теплообмена в теп-лообменниках с диффузорными каналами количество переданного тепла от «горячего» теплоносителя к «холодному» возрастает по сравнению с теплообменниками с гладкими каналами постоянного сечения. Полученные результаты могут служить основанием для разработки новых перспективных теплообменных аппаратов.

пластинчатый теплообменник, теплообменник «труба в трубе», диффузорные каналы, RANS-модель турбулентности.

DOI: http://doi.org/10.33257/PhChGD.25.6.1126


Volume 25, issue 6, 2024 year



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