Performance Analysis of Natural Heat Convective from the Single and Double Notched Fin Heat Sinks

Abstract

An experimental analysis of the heat performance and characteristics for natural convective from the different types of heat sinks to surroundings are reported. This research examines three various configurations of heat sinks namely, with solid fins, with single rectangular notched fins and with double rectangular notched fins. The impact of fins spacing, percentage of removal (notched) area and electrical power inputs with constant the aspect ratio for height to length of fin on heat convective performance and increased rate of heat transfer are analyzed and discussed. The current results appear the thermal performance for a double notched fin heat sink as average Nusselt number about 20% bigger than single notched fins heat sink and about 38% bigger than solid fins heat sink for same case of heat sink. Finally, the results have been compared than last experimental work, a good convergence are appeared.