Research on heat transfer optimization of air-cooling heatsink for rail transit vehicles

被引:0
|
作者
Song G. [1 ]
Wang X. [1 ]
Huang N. [1 ]
Chen Y. [1 ]
Dou Z. [1 ]
Wu Z. [1 ]
机构
[1] CRRC Zhuzhou Institute Co. Ltd., Zhuzhou
关键词
3D composite phase change heatsink; Finned heatsink; Phase change inhibition(PCI); Thermal homogeneity heat pipe; Vapor chamber(VC);
D O I
10.11817/j.issn.1672-7207.2021.01.027
中图分类号
学科分类号
摘要
The heat dissipation efficiency is severely limited by the thermal conductivity of the material. In order to optimize the cooling capacity of the finned heatsink, the performances of the heatsink for the fin side and the heat source side were optimized separately by heat transfer methods based on the heat pipe, phase change inhibition(PCI), vapor chamber(VC), and 3D composite phase change technology. The thermal performance of the heatsink prototypes was tested and compared with that of the traditional finned heatsink. The results show that optimizations of both the fin side and heat side reduce the temperature rise of the heatsink, and promote the thermal homogeneity. And the heatsink with heat source side optimized has better thermal performance than the heatsink with fin side optimized. The 3D composite phase change heatsink has the best thermal performance, whose temperature rise is 65% lower than that of the finned heatsink, with the temperature difference decreased by 55% at the same time. © 2021, Central South University Press. All right reserved.
引用
收藏
页码:267 / 275
页数:8
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