Abstract
The traction motor is one of the major component in an electric vehicle subjected to high temperature variations and thermal stresses. In order to cool the motor, fins are proposed on the housing. Present study investigates effect of various fin geometries such as rectangular fin, rectangular fin with a rectangular protrusion, tapered pin fin integrated with rectangular fin, step fin and wavy fin on heat dissipation of an electric motor by developing numerical model and the comparative study is presented. 3D geometrical model of the motor housing is developed using CATIA V5 and analyzed using ANSYS Workbench 2019 R3. Steady-state temperature distribution in the housing cross section is obtained. The obtained results were found in satisfactory quantitative agreement with the published literature results and deviated not more than 7 percent. Research confirmed that rectangular fin with rectangular protrusions gives the greatest heat transfer comparatively and it is concluded that the life of an electric motor increases as there is decrease in temperature of the motor.
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