Heat Transfer and Pressure Drop Characteristics of the Buoyancy-Aided Heat Transfer Oil-Copper Oxide (HTO-Cuo) Nanofluid Flow in Vertical Tube

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Farhad Hekmatipour
Farhad Hekmatipour
1 Science and Research Branch-Islamic Azad University

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Heat Transfer and Pressure Drop Characteristics of the Buoyancy-Aided Heat Transfer Oil-Copper Oxide (HTO-Cuo) Nanofluid Flow in Vertical Tube Banner
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In this paper, the mixed natural-forced convection is experimentally investigated for the heat-transfer oil-copper oxide (HTO-CuO) nanofluid flows upward in a vertical tube. The flow regime is laminar and the temperature of the tube surface is constant. The effect of the nanoparticles concentration on the heat transfer rate and the pressure dropare studied as Richardson number varies between 0.1 and 0.7. It is observed that the mixed convective heat transfer rate increases with both the nanoparticles concentration and Richardson number. New correlations are proposed to predict the Nusselt number of the nanofluid flow with the reasonable accuracy. In addition, Darcy friction factor of the nanofluid flow is investigated and a new correlation is presented to evaluate the friction factor of HTO-CuO nanofluid flow in vertical tubes.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Farhad Hekmatipour. 2017. \u201cHeat Transfer and Pressure Drop Characteristics of the Buoyancy-Aided Heat Transfer Oil-Copper Oxide (HTO-Cuo) Nanofluid Flow in Vertical Tube\u201d. Global Journal of Research in Engineering - A : Mechanical & Mechanics GJRE-A Volume 17 (GJRE Volume 17 Issue A4): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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GJRE-A Classification: FOR Code: 091399
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v1.2

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September 16, 2017

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English

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In this paper, the mixed natural-forced convection is experimentally investigated for the heat-transfer oil-copper oxide (HTO-CuO) nanofluid flows upward in a vertical tube. The flow regime is laminar and the temperature of the tube surface is constant. The effect of the nanoparticles concentration on the heat transfer rate and the pressure dropare studied as Richardson number varies between 0.1 and 0.7. It is observed that the mixed convective heat transfer rate increases with both the nanoparticles concentration and Richardson number. New correlations are proposed to predict the Nusselt number of the nanofluid flow with the reasonable accuracy. In addition, Darcy friction factor of the nanofluid flow is investigated and a new correlation is presented to evaluate the friction factor of HTO-CuO nanofluid flow in vertical tubes.

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Heat Transfer and Pressure Drop Characteristics of the Buoyancy-Aided Heat Transfer Oil-Copper Oxide (HTO-Cuo) Nanofluid Flow in Vertical Tube

Farhad Hekmatipour
Farhad Hekmatipour Science and Research Branch-Islamic Azad University

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