Abstract: Nanofluids have heat transfer more than typical fluids that causes they used in cooling systems and performance their efficiency. They usually supplied by dispersing metallic and oxide nanoparticles in fluids. Heat transfer performance of nanofluid depends on viscosity, thermal conductivity, specific heat and density. Viscosity affects the pressure and the pumping power of fluids. When nanofluids are circulated in a closed loop for transfer of heat in cooling systems, they can affect the thermal conductivity due to the phenomenon of convection. In the present research, an empirical viscosity assessment of nanofluids comprising CuO nanoparticles (NPs) Propylene Glycol-based in different concentrations and various temperatures of nanofluids has been carried out in this paper. For viscosity investigation of nanofluid, CuO NPs dispersed within propylene glycol (PG). CuO nanoparticles suspended in PG with volume fractions ranging from 0.3, 0.7, 1.1, 1.5, 1.9 and 2.3 % were prepared. So viscosity measured by stabinger viscometer (SVM3000) in various temperatures such as 770F=250C, 400C and 500C. It seems that the sample with 0.3 % and temperature of 250C has maximum viscosity and 1.9 % with temperature of 500C shown minimum viscosity. It shows that there is an almost decrease in viscosity of propylene glycol-based nanofluids with increase in CuO nanoparticles concentration. The viscosity results thus obtained are compared with the Einstein’s model.
Keywords: nanofluids, propylene glycol, viscosity.
Title: The viscosity Study of CuO nanofluid based on Propylene Glycol
Author: Mehrdad. Kavosh
International Journal of Mathematics and Physical Sciences Research
ISSN 2348-5736 (Online)
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