Heat Transfer Optimization for Straight and Helical Double Layer Micro-Channel Heat Sink

The optimization is done by changing geometric and hydrodynamic parameters of the micro-channel flow. The governing equations are solved numerically by finite volume method. Results show that the number of channels, the width of the ribs and the coolant velocity in bottom channel will have considerable impact on cooling performance of the straight micro-channel. Also, since spiral geometry has not been studied in the literature until now, the spiral geometry in the micro-channel cooling performance has also been studied in this study. In this case, the results also show that the lower the curvature radius, the cooling will improve. The optimization is done by changing geometric and hydrodynamic parameters of the micro-channel flow. The governing equations are solved numerically by finite volume method. Results show that the number of channels, the width of the ribs and the coolant velocity in bottom channel will have considerable impact on cooling performance of the straight micro-channel. Also, since spiral geometry has not been studied in the literature until now, the spiral geometry in the micro-channel cooling performance has also been studied in this study. In this case, the results also show that the lower the curvature radius, the cooling will improve.