Thermal analysis of plate fin heat sinks with base plates for CPU cooling

Abstract

Experimental and theoretical studies of the thermal performance of a variety of heat sinks with different base plates for enhancing heat dissipation rates in CPU have been undertaken The parameters such as fin pitch fin thickness base plate thickness and base plate materials are optimized for improving the thermal performance The thermal model of the computer system with a single cut plate fin heat sink design and other fin geometry newlinedesign is created using Gambit and the simulation is carried out using Fluent The experimental results of some simple geometry heat sinks have been compared to those predicted by a commercially available computational fluid dynamics code fluent In this research work the fin thickness is varied from 3mm to 5mm and also the fin pitch is varied from 1 5mm to 3 5mm The aluminum copper and carbon carbon composite materials are used as base plate of heat sink The base plate thickness of 2 5mm and 5mm are used Experimental results show that among the many design parameters the base newlineplate material has the most significant influence on the thermal performance of heat sinks The thermal performance of the heat sinks is increased up to 42 3 by employing ccc base plate newline