Experimental investigation of heat transfer and pressure drop characteristics of Al2O3-water nanofluid

Bayram Sahin*, Gül Gedik Gültekin, Eyuphan Manay, Sendogan Karagoz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

105 Citations (Scopus)

Abstract

In this study, the steady state turbulent convective heat transfer and pressure drop characteristics of Al2O3-water nanofluid inside a circular tube were investigated experimentally. The effects of the volume fraction and Reynolds number were determined under constant heat flux. The results of the heat transfer and pressure drop characteristics with respect to appropriate variables were presented. It was observed that the heat transfer increased with the increase of Reynolds number. The heat transfer increased with an increase in the volume concentration With the exception of the particle volume concentrations of 2 and 4vol.%. The highest heat transfer enhancement was achieved at Re=8000 and f{cyrillic}=0.005.

Original languageEnglish
Pages (from-to)21-28
Number of pages8
JournalExperimental Thermal and Fluid Science
Volume50
DOIs
Publication statusPublished - Oct 2013
Externally publishedYes

Funding

This work was supported by The Turkish Scientific and Technological Research Council of Turkey (TÜBITAK Project No. 105M292) and Ataturk University, Research Project Foundation (Project No. BAP-2007/50). The Authors wish to thank TUBITAK and Ataturk University.

FundersFunder number
Ataturk UniversityBAP-2007/50
Turkish Scientific and Technological Research Council of TURKEY
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu105M292

    Keywords

    • Circular tube
    • Convective heat transfer
    • Nanofluid
    • Oxide nanoparticle

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