Viscosity of Al2O3 Nanoparticles Dispersed in Ethylene Glycol

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In this paper, experimental work has been performed to study the influence of temperature and particle volume fraction on the viscosity of aluminum oxide (Al2O3)-ethylene glycol nanofluids. Nanofluids with particle volume fraction at 1%-4% were examined. Viscosity experiments were carried out at 20°C-60°C. The results show that the viscosity increases as the particle volume fraction increasing, but decreases with an increasing of temperature. It is found that the relative viscosity is independent of temperature for a particular particle concentration, and independent of particle volume fraction at a certain temperature. Furthermore, formula of Chen was verified appropriately, and a correlation was proposed for computing relative viscosity.

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38-43

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September 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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