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Zeinali Heris Saeed,Pourfarhang Samira,Shokrgozar Motahare,Kahani Mostafa 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.4
We investigated the role of nanofluid in a special car radiator and the effect of its different volume concentrationson pressure drop and friction factor of fluid flow. A mixture of 60/40 ratio of ethylene glycol (EG) and distilledwater was used as the host fluid and CuO nanoparticles were dispersed well to make stable nanofluids. The influenceof nanofluid concentrations on pressure drop was evaluated in the radiator at three different inlet fluid temperatures(35, 44, 54 oC). The results demonstrated that the presence of nanoparticles caused an increase in nanofluid pressuredrop, which was intensified by increasing nanoparticle concentration as well as decreasing temperature of inlet fluid. Anew empirical equation for prediction of nanofluid pressure drop through the radiator was developed as well. Also,with increasing the flow rate, the performance index increased and indicated that application of nanofluid in higherflow rate was affordable.