Study of Natural Convection around a Radial Heat Sink with Curved Plate Fins

Abstract

Abstract: This paper presents the details of an experimental and numerical investigation of natural convection in a radial heat sink, composed of a horizontal circular base and curved fins mounted on it and flux input will be examined. Using the experimental data and some basic simulation we will validate our model . The general flow pattern is that of chimney; i.e., cooler air entering from outside is heated as it passes between the fins, then rises from the inner region of heat sink. Parametric studies will be performed to compare the effects of on two parametric geometric ( no. of fins and height of fins). This is a crucial aspect in what concerns the expected lifetime of the LED lamp and should be achieved at the expense of as low as possible aluminium mass. The objective is to achieve a maximum core temperature of 70 degree C keeping the heat sink total mass and occupied volume contained. Keywords: Curved fins, height of fins, radial heat sink, 70 degree C, experimental investigation.