Numerical Investigation of Heat Transfer in Serpentine Microchannel with Al2O3/Water and CuO/Water Nanofluids

In this research, heat sink microchannel will be investigated. In order to improve the efficiency of heat transfer should be increased the fluid thermal conductivity.in this study, Numerical Investigation of the forced convective heat transfer in Serpentine heat sink microchannel with water-AL2O3 and Water-CuO has been studied, and the influence of hydraulic diameter, the Reynolds number and volume fraction of nanoparticles on heat transfer is discussed. The results of this study show that with the increase of Reynolds from 97.3 to 97.98, the pressure drop for nanoparticles of CuO increased from 1.7 kPa to 31.4 kPa and with the increase of Reynolds from 91.80 to 1121.35 Nuselt number will be multiplied by 3.2. Two different volume fractions of 1% and 3% and distinctive nanoparticle diameters were employed. Increasing the nanoparticles volume fraction together with decreasing the nanoparticles diameter enhances the Nusselt number value. The pressure drop coefficient did not change significantly by using nanofluid with various volume fractions and varied nanoparticle diameters.