D. V. Guzey, A. V. Minakov, V. Ya. Rudyak, A. A. Dekterev, “Measuring the heat-transfer coefficient of nanofluid based on copper oxide in a cylindrical channel”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2014, Volume 40, Issue 5,Pages <nobr>34

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Measuring the heat-transfer coefficient of nanofluid based on copper oxide in a cylindrical channel

D. V. Guzey^abc, A. V. Minakov^abc, V. Ya. Rudyak^abc, A. A. Dekterev^abc

^a Siberian Federal University, Krasnoyarsk
^b S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences
^c Novosibirsk State University of Architecture and Civil Engineering

Abstract: The heat-transfer coefficient of nanofluid during its flow in a cylindrical channel is studied experimentally. The studied nanofluid was prepared based on distilled water and CuO nanoparticles. Nanoparticle concentration varied in the range from 0.25 to 2% in the volume. The nanofluid was stabilized using a xanthane gum biopolymer the mass concentration of which did not exceed 0.03%. Considerable intensification of heat transfer was found. The nanofluid appeared to be Newtonian when particle concentrations exceeded 0.25%. Estimates for rheological parameters of the nanofluid and thermal conductivity coefficient have been obtained.

Received: 03.10.2013