A SETUP OF PIN FIN APPARATUS

Abstract

Heat transfer is key phenomena of any cooling systems for the safe and satisfactory operating condition of an appliance. Fins are occupying a greater role in cooling of vehicle systems and specifically, radiating fins are used in space vehicles which represents an important part of the satellite thermal control system.

The present work assumed three different profiles such as rectangular, stepped and elliptical pin-fins in radiation ambiance. The experiment is conducted in vacuum chamber setup to show the possibilities of heat transfer enhancement in radiating fins by taking those different profiles, also with Computational fluid dynamics. The performance of fins can be depicted in terms of the thermal conductivity and amount of heat transfer which is possible to evaluate from fin’s temperature distribution.

However, a temperature dependent thermal conductivity is considered when there is a large temperature difference. Hence, the finite volume method is employed to simulate the temperature distribution due to the lower temperature gradient. The results of experimental and numerical analysis are used to compare the fin profiles for suitability in space vehicles