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Caractéristiques hydrodynamiques et transfert de chaleur par convection de nanofluides

Abstract : In this article an experimental study of laminar convective heat transfer for two types of nanofluids flowing through a uniformly heated tube is presented. The nanofluids consist of silver and titanium oxide nanoparticles dispersing into water. The thermal conductivity and dynamic viscosity of nanofluids have been measured and modeled at different temperatures and concentrations. Moreover, the heat transfer coefficient and pressured drop of nanofluids flow inside the tube have been measured at different Reynolds numbers. The results indicate that the heat transfer coefficient and pressured drop increase with nanoparticle concentration and Reynolds number. Finally, a criterion has been introduced to find the proper nanofluids for using in heat exchangers and energy systems.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01189503
Contributor : Patrice Estellé <>
Submitted on : Tuesday, September 1, 2015 - 12:10:45 PM
Last modification on : Friday, July 10, 2020 - 4:24:57 PM

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  • HAL Id : hal-01189503, version 1

Citation

E. Ebrahimnia-Bajestan, A. Javadian-Saraf, H. Niazmand, Patrice Estellé. Caractéristiques hydrodynamiques et transfert de chaleur par convection de nanofluides. 22ème Congrès Français de Mécanique, Aug 2015, Lyon, France. ⟨hal-01189503⟩

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