ANALISIS PERPINDAHAN PANAS DAN PERFORMA PADA SIRIP MESIN SEPEDA MOTOR DENGAN MEMVARIASIKAN KECEPATAN UDARA

Air-cooled motorcycle engines release heat into the atmosphere through forced convection mode, which is an important component for increasing the heat transfer rate provided on the outer surface of the cylinder block. The rate of heat transfer depends on the geometry of the fin, the surface of the fin, the thickness of the fin, the distance between the fins, the air velocity, and the ambient temperature. This study aimed to analyze the rate of heat transfer on motorcycle engine fins by varying air velocity from 60 km/h, 80 km/h, and 100 km/h. This model was created by using Autodesk Inventor Professional 2020 and simulated Autodesk Computational Fluid Dynamics 2019. The result of varying degrees of heat transfer improves the efficiency and effectiveness of motorcycle fins as indicated by the temperature distribution. The significant temperature drop that occurred ±20% proves that air velocity is very important to increase the rate of heat transfer and the performance of motorcycle engines.