@article { author = {Abdel Aty, H. and Hassan, O. and Abdelgawad, M. and Abdel-Shafi, N.}, title = {EXPERIMENTAL INVESTIGATION OF THE EFFECT OF NUMBER OF LAYERS AND FLOW ARRANGEMENT ON THE PERFORMANCE OF A MICROCHANNEL HEAT SINK SYSTEM}, journal = {The International Conference on Applied Mechanics and Mechanical Engineering}, volume = {18}, number = {18th International Conference on Applied Mechanics and Mechanical Engineering.}, pages = {1-13}, year = {2018}, publisher = {Military Technical College}, issn = {2636-4352}, eissn = {2636-4360}, doi = {10.21608/amme.2018.34994}, abstract = {ABSTRACTThis paper presents experimental investigation of the effect of number of layers aswell as the flow arrangement on the performance of a microchannel heat sink system(MCHS). The effect of flow rate on pressure drop, temperature uniformity, and outlettemperature in single and double layers MCHS under the effect of uniform heat fluxcondition was investigated. The MCHS used had micro channels with rectangularcross section. The heat flux applied during the experiments was varied from 5.0 to13.68 W/cm2. The results of single layer MCHS were compared with theoreticalpredictions in order to validate the results of the present test rig. From the obtainedresults it was observable that the outlet temperature was highly dependent on themass flow rate until a certain value after which change in the outlet temperature wasminor. On the other hand, the pressure drop increased almost linearly with theincrease in mass flow rate due to laminar nature of the flow. When multilayersystems were tested, the main observation was a significant reduction in thepressure drop compared to the single layer case for the same mass flow rate.Moreover, flow arrangement was found to have an impact on pressure drop whichwas smaller in the case of counter flow arrangement compared to parallel flowarrangement case. Flow configuration (parallel, counter, or cross-flow) had asignificant effect on temperature uniformity over the heat sink area with counter-flowarrangement giving best temperature uniformity followed by the cross-flowarrangement. Change in the outlet temperature in the case of multilayer and singlelayer systems was not significate which may be due to the fact that the same massflow rate was applied to all tested cases.}, keywords = {Micro channel heat sink,multi-layer,flow arrangement,Experimental Investigation}, url = {https://amme.journals.ekb.eg/article_34994.html}, eprint = {https://amme.journals.ekb.eg/article_34994_bfba3965c1b1058f5fd416af0067f2a6.pdf} }