Performance of electric motors and losses in terms of heat and temperature are reviewed in this paper. Airgap eccentricity, electromagnetic performance, effect of temperature and losses are shown as factors affecting the efficiency. Several methods of computer aided analyses are listed. Temperature distribution in an induction motor is shown through the results of a simulation. Different cooling methods are reviewed. Future directions for research include cryogenic cooling, heat pipes and usage of phase change materials.

中文翻译：

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寻找损耗的方法和提高电机效率的冷却方法的综述

本文回顾了电动机的性能以及热量和温度方面的损失。气隙偏心率，电磁性能，温度和损耗的影响是影响效率的因素。列出了几种计算机辅助分析的方法。通过仿真结果显示了感应电动机中的温度分布。审查了不同的冷却方法。未来的研究方向包括低温冷却，热管和相变材料的使用。