This article is cited in 35 papers

Heat and Mass Transfer and Physical Gasdynamics

Measurement of the heat transfer coefficient of a nanofluid based on water and copper oxide particles in a cylindrical channel

A. V. Minakov^ab, V. Ya. Rudyak^c, D. V. Guzey^b, A. S. Lobasov<sup>b

a</sup> S.S. Kutateladze Institute of Heat Physics, Siberian Division of the Russian Academy of Sciences
^b Siberian Federal University, Krasnoyarsk
^c Novosibirsk State University of Architecture and Civil Engineering

Abstract: The heat transfer coefficient of a nanofluid in a cylindrical channel under constant heat flux density at the walls is measured experimentally. The studied fluid was prepared based on distilled water and $\mathrm{CuO}$ nanoparticles with an average size of $55$ nm. To stabilize the nanofluid, a biopolymer was used. The volume concentration of nanoparticles was in the range from $0.25$ to $2\%$. It is shown that the nanofluid is Newtonian at the lowest concentration of nanoparticles, and in all other cases, its rheology is described well by the model of a power-law fluid. A correlation of the dependence of the parameters of this model on the concentration of nanoparticles is obtained. It is found that the presence of nanoparticles greatly intensifies the heat transfer.

UDC: 536.24+532.133+532.135

Received: 13.11.2013
Accepted: 15.04.2014

DOI: 10.7868/S0040364415020167

 English version: High Temperature, 2015, 53:2, 246–253

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