Optimization of Microchannel Heat Sink Shapes to Enhancing Electronic Cooling Efficiency

This research employed Computational Fluid Dynamics (CFD) for comparison between two different microchannel shapes of microchannel heat sinks. Latent heat of MCHS are vital cooling techniques for electronic systems. Their geometry is one element that profoundly affects their performance. In this study, the hydrodynamic and thermal performances of MCHS with different microchannel shapes (e.g., conventional square, round-corner-square) are compared. CFD simulations were used to evaluate the fluid flow and heat transfer in MCHS. Varied parameters included surface roughness, aspect ratio, and Reynolds number. This paper presents detailed numerical simulations for each microchannel shape to explore pressure loss, thermal uniformity, and actual heat dissipation efficiency. Commercial CFD software was employed to carry out computations. In fact, the results of the study provide the advantages and disadvantages of different microchannel designs for cooling application which go far beyond mere numbers. As microchannels, if they are rectangular and do not have rounded corners square microchannels possess the most obvious advantages in terms of practical. But in sum will bring a better heat transfer rate and still at less pressure drop. These findings will have far-reaching consequences for heat transfer problems which involve flow through capillary tubes, ease of fabrication, or void fraction predictions, just like the prediction of heat transfer correctly, fabricating locally at will and obtaining an excellent flow control.