Abstract
CFD is performed to study the flow and heat transfer features of a TEFC induction motor. Geometry of an end shield and diameter of the fan cover are varied and examined. The modification of the end shield at the fan side can help increase the flow rate at the loading side by 10% due to a reduction in recirculation between the fan and the end shield. The change of cover diameter can lead to a variation of 40% in the external flow rate at the fan side and around 15% at the loading side. A combination of the re-designed end shield and the fan cover with large diameter is proposed in our study which can lower the average winding temperature by 4°C.
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