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


Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S0018151X15020169

Ключевые слова: Copper oxides, Heat flux, Heat transfer, Heat transfer coefficients, Nanoparticles, Average size, Constant heat flux, CuO nanoparticles, Cylindrical channel, Distilled water, Oxide particles, Power law fluid, Volume concentration, Nanofluidics

Аннотация: 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 CuO nanoparticles with an average size of 55 nm. To stabilize the nanofluid, a biopolymer was used. The volume concentration of nПоказать полностьюanoparticles 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.

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Выпуск журнала: Vol. 53, Is. 2

Номера страниц: 246-253

ISSN журнала: 0018151X

Место издания: NEW YORK



  • Minakov A.V. (Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences)
  • Guzei D.V. (Siberian Federal University)
  • Lobasov A.S. (Siberian Federal University)
  • Rudyak V.Y. (Novosibirsk State University of Architecture and Civil Engineering)

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