对称斜肋强化片式散热器换热性能研究与优化

doi:10.3969/j.issn.1008- 0198.2023.05.014

湖南电力 ›› 2023, Vol. 43 ›› Issue (5): 92-98.doi: 10.3969/j.issn.1008- 0198.2023.05.014

对称斜肋强化片式散热器换热性能研究与优化

吴忧然¹, 师春雨¹, 刘伟¹, 张学伟², 刘志春¹

1.华中科技大学能源与动力工程学院,湖北武汉 430074;
2.广东申菱环境系统股份有限公司研究院,广东顺德 528312

收稿日期:2023-07-24 修回日期:2023-08-21 出版日期:2023-10-25 发布日期:2023-11-03
通信作者: 吴忧然(1999),男,硕士研究生,通信作者,主要从事电子设备热管理研究。
作者简介:刘志春(1976),华中科技大学能源与动力工程学院教授,博士生导师,主要研究方向为强化传热理论与技术、电子器体散热等。
基金资助:
国家自然科学基金项目(52076088);佛山市顺德区核心技术攻关项目(2130218002932)

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

摘要/Abstract

摘要： 对在某大型油浸式变压器的片式散热器中相邻散热片之间的矩形空气通道布置对称斜肋开展数值研究,将对称斜肋的长度L_f和高度H_f作为控制斜肋形状的结构参数。数值计算结果表明,L_f和H_f对于增大矩形通道努塞尔数(Nu)表现出协同作用,H_f对矩形通道摩阻系数f的影响更强。通过克里金法建立矩形通道的目标性能与设计参数之间的代理模型,最后通过多目标优化算法得到了最佳参数组合,该参数组合下与光滑矩形通道相比,矩形通道Nu数提升至2.26倍,f提升至3.39倍,综合换热性能指标为1.52。

关键词: 对流换热, 扰流结构, 片式散热器, 油浸式变压器, 优化分析

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

中图分类号:

TM411

吴忧然, 师春雨, 刘伟, 张学伟, 刘志春. 对称斜肋强化片式散热器换热性能研究与优化[J]. 湖南电力, 2023, 43(5): 92-98.

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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对称斜肋强化片式散热器换热性能研究与优化

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

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