Thermal analysis of perforated pin-fins heat sink under forced convection condition

Thermal management of electronic appliances is very important to increase the life span of the electronic device. This study aims to contribute to this growing area of research by studying the effect of perforated pin fins on thermal performance of heat sink under forced convection. This study also provided an important opportunity to advance the understanding of the effect of different parameters such as pressure drop, temperature distribution and level of perforation on the thermal performance of the heat sink. The model is simulated in three dimensional rectangle channels. For the experimental setup, the airflow velocity used in the experiment is 1 m/s similar to 3m/s with increment of 0.5 m/s. Constant heat flux of Q=50W and ambient temperature of 25 degrees C was considered in the experiment. Result shows that perforated pin fins and flat plate heat sink improve 1-4% thermal efficiency compared to solid pin fins and solid flat plate heat sink. (C) 2018 The Authors. Published by Elsevier B.V.