Study and Optimization on Heat Transfer Performance of Symmetric Inclined Fin Reinforcement Plate Radiator

doi:10.3969/j.issn.1008- 0198.2023.05.014

Hunan Electric Power ›› 2023, Vol. 43 ›› Issue (5): 92-98.doi: 10.3969/j.issn.1008- 0198.2023.05.014

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Study and Optimization on Heat Transfer Performance of Symmetric Inclined Fin Reinforcement Plate Radiator

WU Youran¹, SHI Chunyu¹, LIU Wei¹, ZHANG Xuewei², LIU Zhichun¹

1. School of Energy and Power Engineering , Huazhong University of Science and Technology, Wuhan 430074,China;
2. Guangdong Shenling Environmental System Co., Ltd. Research Institute, Shunde 528312,China

Received:2023-07-24 Revised:2023-08-21 Online:2023-10-25 Published:2023-11-03

Abstract

Abstract: A numerical study is carried out on the rectangular air passage between adjacent fins in the chip radiator of a large oil-immersed transformer, and the length L_fand height H_f of the symmetric diagonal ribs are taken as structural parameters to control the shape of the diagonal ribs. The numerical results show that L_f and H_f have a synergistic effect on increasing Nusselt number (Nu)of rectangular channel, while H_f has a stronger influence on friction coefficient f of rectangular channel. The proxy model between the objective performance and design parameters of rectangular channel is established by Kriging model. Finally, the optimal parameter combination is obtained by multi-objective optimization algorithm. Under this parameter combination, the Nu of rectangular channel is increased to 2.26 times, the f is increased to 3.39 times, and the comprehensive heat transfer performance index is 1.52.

Key words: heat convection, turbulence structure, chip radiator, oil-immersed transformer, optimization analysis

CLC Number:

TM411

WU Youran, SHI Chunyu, LIU Wei, ZHANG Xuewei, LIU Zhichun. Study and Optimization on Heat Transfer Performance of Symmetric Inclined Fin Reinforcement Plate Radiator[J]. Hunan Electric Power, 2023, 43(5): 92-98.

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Study and Optimization on Heat Transfer Performance of Symmetric Inclined Fin Reinforcement Plate Radiator

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