Xin Lu1,2, Jin-long Zhang1,2, Lu Wang1,2, and Liang-bi Wang  1,2

1School of Mechanical and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070
2Key Laboratory of Railway Vehicle Thermal Engineering Ministry of Education (Lanzhou Jiaotong University), Lanzhou 730070


 

Received: October 26, 2021
Accepted: January 12, 2022
Publication Date: February 10, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.6180/jase.202212_25(6).0011  


ABSTRACT


The influence of structural parameters on the thermal resistance of electrical heat sinks with a circular heating area is analyzed using a numerical model experimentally verified. The correlation of the dimensionless thermal resistance regarding to working parameters and other geometric parameters is obtained. The correlation not only can reveal various kinds of the trends of thermal resistance changes with the parameters, but also can directly predict the thermal resistance. The results provide a theoretical basis for designing this type of heat sink.


Keywords: Heat sink; Heat load action area as circular shape; Thermal resistance; Numerical simulation; Experimental verification


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