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Boiling of Nanofluid is an important area of research due to its potential to offer enhancement in heat transfer rate. Graphene nanoparticles based nanofluid is one of the most investigated nanofluids... due to its wide range of advantages such as high thermal conductivity, high stability, low erosion, higher carrier mobility etc.; however, the disparity on the effect of boiling heat transfer subsists still. The present work investigates the effect of variation in graphene nanofluid concentration (0.1 and 0.2 volume % concentration) on the pool boiling heat transfer of a smooth copper sample. Subsequently, the results are compared with water as a working fluid for the purpose of estimating the effect of nanofluid on the heat transfer coefficient. Employing the volume of fluid method, numerical simulation is performed to study the effect of nanoparticle concentration. The experimental results are compared with the numerical simulation results and found in good agreement. It is seen that the rate of heat transfer increases significantly with graphene nanofluids as compared to pure water as working fluid.続きを見る
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