Study Of Microchannels With Fins For Effective Cooling Of Electronic Equipment With Help Of Cfd

Mechanical Engineering

This paper includes Numerical study of different microchannel with internal fins to investigate fluid flow and heat transfer characteristics. Three types of microchannels are studied –square channel with conventional and cross fins and rectangular channel with conventional fins. Constant heat flux boundary conditions were assumed on external walls of microchannel along with mass flow inlet and atm pressure outlet condition. Result of average local nusselt no distribution along the channel length were obtained as function of the fin height ratio. The analysis was carried out for different fin height and flow parameters in presence of a hydrodynamically developed, thermally developing laminar flow. The existence of optimum fin height ratio for each type of microchannel is found out in present study.

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