Simulation study on the influence of gas ducting on the performance of two-pass microchannel evaporator

Junge Xue; Hua Chen

doi:10.1117/12.3039454

28 August 2024 Simulation study on the influence of gas ducting on the performance of two-pass microchannel evaporator

Junge Xue, Hua Chen

Proceedings Volume 13251, Ninth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024); 132511E (2024) https://doi.org/10.1117/12.3039454
Event: 9th International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024), 2024, Guilin, China

Abstract

Microchannel evaporator has a great effect on the heat transfer efficiency, and has broad application prospects in the field of air conditioning refrigeration, electronic components, etc., but the problem of uneven refrigerant flow distribution seriously affects the performance of two-pass microchannel evaporator. Based on the two-pass microchannel evaporator, a new gas ducting device is designed with R134a as the simulation medium to compare the flow distribution and heat transfer of each flat tube with different depth parameters of the gas ducting device by means of numerical simulation. The results show that the two-phase length of the microchannel evaporator increases by 5% on average after adding the gas ducting device, and the greater the inlet flow is, the more obvious the improvement is. The uneven distribution of the total flow after the improvement is reduced by 31% ~ 48%, and the heat transfer is increased by 21%.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Junge Xue and Hua Chen "Simulation study on the influence of gas ducting on the performance of two-pass microchannel evaporator", Proc. SPIE 13251, Ninth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2024), 132511E (28 August 2024); https://doi.org/10.1117/12.3039454

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