▎ 摘　　要

Cooling of electronic equipment has gained significant importance in thermal management systems as a result of the increase of power densities in micro-electronic equipment. This present work investigates the convective cooling performance of microwave assisted acidic functionalized graphene - deionized water nanofluid. The nanofluid possess high dispersion stability (Zeta potential < -40mV) in the pH range (6-8) and a thermal conductivity enhancement of 55.38% compared to base fluid. The heat transfer performance of the nanofluid was studied by investigating the effect of volume fraction (0 to 0.2vol.%) and flow rate (5ml/s to 10ml/s) on the convective heat transfer coefficient, processor core temperature, and pressure drop. An increase in the convective heat transfer coefficient of about 78.5%, a decrease in the core temperature of about 15% and an average increase of 5% in pressure drop were obtained for the maximum concentration and flow rate of the nanofluid. The results concluded that acidic functionalization of graphene nanoparticle has a significant influence on the increase in the thermo-fluid properties of nanofluid and thus can be used as an efficient heat transfer fluid, compared to conventional coolants.