Comparison of Experimental and Analytical Results of Impact of Various Geometrical Configurations on Pressure Drop Through Micro-channel

Shape and size of micro-channel have remarkable effect on the heat transfer and the pressure drop performance. This paper mainly focuses on the effect of various geometrical configurations of micro-channel heat sink performance. The performance parameters considered for the study are Reynolds number, friction factor, uniformity of flow and pressure drop. In this study, the surface area of all micro channels is kept constant, so that the any performance variation can be attributed solely to the variation in geometry of the micro channel. Different geometrical configurations of micro channel considered in this study. Experimental analysis is carried out for different flow rates of coolant through the micro channels. In this work, the copper micro channel having hydraulic diameter as a 1340 µm is used in experimental analysis. The experimental results obtained in this study are found to be in good agreement with the theoretical results from literature. This work is proposed to help in selecting suitable geometry for micro channels having the less pressure drop per unit length along with less pumping power and reduced weight and size of the device.