Table of Contents
ISRN Mechanical Engineering
Volume 2013, Article ID 865015, 6 pages
Research Article

Thermal Analysis of Air-Core Power Reactors

State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China

Received 28 January 2013; Accepted 26 February 2013

Academic Editors: B. Chan, J. K. Chen, J.-I. Jang, and G.-J. Wang

Copyright © 2013 Zhao Yuan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A fluid-thermal coupled analysis based on FEM is conducted. The inner structure of the coils is built with consideration of both the structural details and the simplicity; thus, the detailed heat conduction process is coupled with the computational fluid dynamics in the thermal computation of air-core reactors. According to the simulation results, 2D temperature distribution results are given and proved by the thermal test results of a prototype. Then the temperature results are used to calculate the heat flux to predict the detailed heat transfer process in the packages of the reactors. The study in this paper may be useful in the design optimization in air-core reactors.