ENCIT-2018-XXXX NEW EMPIRICAL CORRELATIONS FOR PREDICTING THE THERMAL CONDUCTIVITY AND VISCOSITY OF NANOFLUIDS Al2O3/WATER

摘要: This work concerns the development of empirical correlations to predict the thermal conductivity and dynamic viscosity of nanofluids composed of Al2O3/water by the teory of Vaschy-Bckingham. The database used in this work has 264 results for the thermal conductivity and 258 for the viscosity, with volumetric concentrations up to 2%, nanoparticles diameters varying from 10 to 235 nm and fluid temperatures ranging from 10 to 90 C. The correlations proposed in this work predicted the database with a mean error of 2.94% for the thermal conductivity and 6.14% for the viscosity. The new correlation for thermal conductivity predicted the database with a mean error of 2, 94% and 90% of them are correlated within a mean deviation of±5%. To viscosity, a correlation proposed in this work predicted the database with a mean error of 6, 14% and more than 90% of them are correlated within a mean deviation of±15%.