A model of nanofluids effective thermal conductivity based on dimensionless groups |
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| Authors: | A R Moghadassi S Masoud Hosseini D Henneke A Elkamel |
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| Institution: | (1) Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran;(2) Department of Chemical Engineering University of Waterloo, Ontario, Canada |
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| Abstract: | Thermal conductivity is an important parameter in the field of nanofluid heat transfer. This article presents a novel model
for the prediction of the effective thermal conductivity of nanofluids based on dimensionless groups. The model expresses
the thermal conductivity of a nanofluid as a function of the thermal conductivity of the solid and liquid, their volume fractions,
particle size and interfacial shell properties. According to this model, thermal conductivity changes nonlinearly with nanoparticle
loading. The results are in good agreement with the experimental data of alumina-water and alumina-ethylene glycol based nanofluids. |
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| Keywords: | dimensionless group model nanofluid particle size thermal conductivity |
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