THERMAL SCIENCE

International Scientific Journal

Chidanand K. Mangrulkar

,

Vilayatrai M. Kriplani

,

Ashwinkumar S. Dhoble

EXPERIMENTAL INVESTIGATION OF CONVECTIVE HEAT TRANSFER ENHANCEMENT USING ALUMINA/WATER AND COPPER OXIDE/WATER NANOFLUIDS

ABSTRACT
The nanofluids are widely used for heat transfer applications in the various engineering applications. The nanoparticles dispersed uniformly in the base fluid on proper mixing. In the present study, Al2O3 and CuO nanoparticles were selected and the changes in the heat transfer coefficient were investigated in the complete laminar and discrete points of transition fluid flow through a copper tube with constant heat flux. The heat transfer coefficient was investigated at different loading of Al2O3 and CuO nanopowders ranging from 0.1% to 0.5% of volume concentration in each case for the laminar and transition fluid flow zones, which is then compared with the distilled water as a plain base fluid. It is found that the optimum enhancement in heat transfer is observed at relatively lower volume fraction of nanoparticles ranging between 0.2 to 0.3%.
KEYWORDS
heat transfer coefficient, nanofluids, heat transfer
PAPER SUBMITTED: 2014-12-25
PAPER REVISED: 2015-05-22
PAPER ACCEPTED: 2015-05-22
PUBLISHED ONLINE: 2015-06-07
DOI REFERENCE: https://doi.org/10.2298/TSCI141225077M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 5, PAGES [1681 - 1692]
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Experimental investigation of convective heat transfer enhancement using alumina/water and copper oxide/water nanofluids

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence