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Heat Transfer Research
Facteur d'impact: 0.404 Facteur d'impact sur 5 ans: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2014006379
pages 485-505

EXPERIMENTAL INVESTIGATION OF THE EFFECT EXERTED BY NANOPARTICLES ON THE HEAT TRANSFER COEFFICIENT OF HERSCHEL−BULKLEY FLUIDS

Roozbeh Mollabbasi
Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Seyyed Hosein Noie
Heat Pipe and Nanofluid Research Center, Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Saeed Zeinali Heris
Heat Pipe and Nanofluid Research Center, Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

RÉSUMÉ

Non-Newtonian fluids play an important role in the chemical engineering industry. In this paper, the effect of adding TiO2, Al2O3, and CuO nanoparticles on the convective heat transfer coefficient of a Herschel−Bulkley fluid is investigated. A local and average heat transfer coefficient of the base fluid and nanoparticle suspension is calculated. Experimental data shows that the adding different concentrations of TiO2, Al2O3, and CuO increase these parameters. Also it is observed that though nanoparticles increase the thermal conductivity of a base fluid, the change of its rheological property has a greater effect on increasing heat transfer coefficient.


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