Phenomenological formula for thermal conductivity coefficient of water-based nanofluids |
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| Authors: | D Ceotto V Ya Rudyak |
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| Institution: | 1.Ministero dell’ Istruzione,dell’Universitá e della Ricerca,Ricerca,Italy;2.Novosibirsk State University of Architecture and Civil Engineering,Novosibirsk,Russia |
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| Abstract: | A phenomenological formula has been proposed to describe the thermal conductivity of waterbased nanofluids. The formula has been derived based on available experimental data on nanofluids containing Al2O3 particles. It takes into account the dependence of the thermal conductivity coefficients of the nanofluids on both volume concentration and sizes of the particles. The formula has also been shown to describe with an accuracy of about 3% the thermal conductivity coefficients of nanofluids containing TiO2, SiO2, ZrO2, and CuO particles with sizes of 8–150 nm and volume concentrations as high as 8%. |
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