Experimentation on Microchannel Enhanced with Pin Fins for Electronic Cooling
This paper presents the thermal performance enhancement of microchannel using cylindrical pin fins insertion with water as coolant for the characteristics of heat transfer and fluid flow. The MCHS made of copper with 3 parallel channels having dimensions 500(width) x 1500(depth) µm for different heat fluxes(65 w/cm2-200w/cm2) with Reynolds number ranging from 750-1650 is experimentally tested. The overall performance is analysed by using non dimensional parameters such as nusselt number and friction factor. The microchannel with cylindrical pin fins has higher heat transfer coefficient and nusselt number with some penalty of pressure drop. As compared to pressure drop there is more increase in heat transfer coefficient.
Keywords - Microchannel, Pin Fins, Electronic Cooling