Experimental study of mixed convection with water-Al2O 3 nanofluid in inclined tube with uniform wall heat flux

R. Ben Mansour; N. Galanis; C. T. Nguyen

doi:10.1016/j.ijthermalsci.2010.03.016

Experimental study of mixed convection with water-Al₂O ₃ nanofluid in inclined tube with uniform wall heat flux

R. Ben Mansour^*, N. Galanis, C. T. Nguyen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

An experimental investigation was carried out to study mixed convection of Al₂O₃-water nanofluid inside an inclined copper tube submitted to a uniform wall heat flux at its outer surface. The effects of nanoparticles concentration and power supply on the development of the thermal field are studied and discussed under laminar flow condition. Results show that the experimental heat transfer coefficient decreases slightly with an increase of particle volume concentration from 0 to 4%. Two new correlations are proposed to calculate the Nusselt number in the fully developed region for horizontal and vertical tubes, for Rayleigh number from 5 × 10⁵ to 9.6 × 10⁵, Reynolds number from 350 to 900 and particle volume concentrations up to 4%.

Original language	English
Pages (from-to)	403-410
Number of pages	8
Journal	International Journal of Thermal Sciences
Volume	50
Issue number	3
DOIs	https://doi.org/10.1016/j.ijthermalsci.2010.03.016
State	Published - Mar 2011
Externally published	Yes

Bibliographical note

Funding Information:
This project is part of the R&D program of the NSERC Chair in Industrial Energy Efficiency established in 2006 at the ‘ Université de Sherbrooke ’. The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada, Hydro Québec, Alcan International Ltd and CANMETEnergy Technology Center.

Keywords

Al O-water mixture
Experimental study
Heat transfer
Laminar flow
Mixed convection
Nanofluid
Nanoparticles

ASJC Scopus subject areas

Condensed Matter Physics
General Engineering

Access to Document

10.1016/j.ijthermalsci.2010.03.016

Cite this

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title = "Experimental study of mixed convection with water-Al2O 3 nanofluid in inclined tube with uniform wall heat flux",

abstract = "An experimental investigation was carried out to study mixed convection of Al2O3-water nanofluid inside an inclined copper tube submitted to a uniform wall heat flux at its outer surface. The effects of nanoparticles concentration and power supply on the development of the thermal field are studied and discussed under laminar flow condition. Results show that the experimental heat transfer coefficient decreases slightly with an increase of particle volume concentration from 0 to 4\%. Two new correlations are proposed to calculate the Nusselt number in the fully developed region for horizontal and vertical tubes, for Rayleigh number from 5 × 105 to 9.6 × 105, Reynolds number from 350 to 900 and particle volume concentrations up to 4\%.",

keywords = "Al O-water mixture, Experimental study, Heat transfer, Laminar flow, Mixed convection, Nanofluid, Nanoparticles",

author = "\{Ben Mansour\}, R. and N. Galanis and Nguyen, \{C. T.\}",

note = "Funding Information: This project is part of the R\&D program of the NSERC Chair in Industrial Energy Efficiency established in 2006 at the {\textquoteleft} Universit{\'e} de Sherbrooke {\textquoteright}. The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada, Hydro Qu{\'e}bec, Alcan International Ltd and CANMETEnergy Technology Center. ",

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