Measurement of the thermal-conductivity coefficient of nanofluids by the hot-wire method

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1007/s10891-015-1177-7

Ключевые слова: CFD (computational fluid dynamics), Experiment, Free convection, Heat conduction, Hot-wire method, Nanofluid, Nanoparticles, Alumina, Computational fluid dynamics, Ethylene, Ethylene glycol, Experiments, Heat conduction, Heat convection, Heat transfer, Nanofluidics, Nanoparticles, Natural convection, Polyols, Thermal conductivity of liquids, Wire, Alumina Nanoparticle, CFD (computational fluid dynamics), Experimental procedure, Hot wire method, Measurements of, Model of heat transfers, Nanofluids, Thermal conductivity coefficient, Thermal conductivity

Аннотация: In this work, the authors present results of adaptation and testing of the hot-wire method for determination for the thermal-conductivity coefficient of nanofluids. A mathematical model of heat transfer with allowance for free convection has been constructed to elucidate the parameters of an experimental setup and the range of its applicability. The experimental procedure has been tested on measurements of the thermal conductivities of water and ethylene glycol. The thermal-conductivity coefficient of a nanofluid has been measured at room temperature. The nanofluid under study was prepared on the basis of ethylene glycol and alumina nanoparticles. The concentrations of the nanoparticles ranged from 0.5% to 2% by volume. Good agreement has been obtained between the measured values of the thermal-conductivity coefficient and the data of other authors. © 2015 Springer Science+Business Media New York.

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Издание

Журнал: Journal of Engineering Physics and Thermophysics

Выпуск журнала: Vol. 88, Is. 1

Номера страниц: 149-162

ISSN журнала: 10620125

Авторы

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

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