Thermal Analysis of Flat Plate Heat Sink with Fins of Different Configurations under Natural Convection

Abstract

This paper investigated the effect of four different configuration of plate fin heat sink subjected to natural convection. Comprehensive thermal performance was studied for each of the heat sinks. The test 1 heat sinks is the normal or control heat sink, test 2, heat sink have its fins tapered and fillet, test 3 has its fins only tapered, while test 4, has its fins filleted. Investigations were performed for variables such as 100W heat source, 303 K ambient temperature and convective coefficient of air 25 W/m2 K. a temperature colour map of the heat sinks were plotted and also, the temperature profile of the center fin for each heat sink. The results show that test 4 has a 11.89% than the other three test 1 configurations.