Experimental Investigation of Effective Viscosity and Density of Nanofluids

Abstract

In the present research work, the effect of nanoparticles volume concentration and the temperature on the effective viscosity and the density of nanofluids were investigated. The stable nanofluids using different base fluids and nanoparticles with varying nanoparticles concentration were prepared. The Rheometer and density meter (Anton Parr Make) were used for the measurement of viscosity and density of nanofluids. The experimental results clearly shows that the viscosity of nanofluid, increase with increase in particle volume concentration and decreases with increase in temperature of nanofluids. The increment in viscosity differs with different base fluids. The classical formulas for viscosity under predict the viscosity enhancement. Experimental data for density of nanofluids shows increase in density with increase in nanoparticles concentration. The temperature has negligible effect on the density of nanofluid. The mixture formula shows good agreement to predict the density of nanofluid.