Paul, G and Sarkar, S and Pal, T and Das, P K and Manna, Indranil (2012) Concentration and size dependence of nano-silver dispersed water based nanofluids. Journal of Colloid and Interface Science, 371. pp. 20-27. ISSN 0021-9797

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Abstract

Nanometric silver dispersed water based nanofluids have been prepared by a single-step chemical process. The crystallite/particle size, morphology and purity of nanoparticles were characterized using standard microscopic, diffraction and spectroscopic techniques. The thermal conductivity enhancement (with respect to the base fluid) has been determined as a function of concentration and size of silver particles using transient hot-wire technique. The accurate fitting of the experimental data of thermal conductivity enhancement with a theoretical model developed by Patel et al. [24] predicts that high specific surface area of the particles, layering at the liquid-solid interface and Brownian motion may be responsible for enhancement. (C) 2011 Elsevier Inc. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Nanofluid; Transient hot-wire; Concentration; Particle size; Brownian motion
Subjects:	Crystal Chemistry, Thermodynamics, Phase Equilibria
Divisions:	Director�s Secretariat
Depositing User:	Bidhan Chaudhuri
Date Deposited:	04 Jun 2012 11:00
Last Modified:	04 Jun 2012 11:00
URI:	http://cgcri.csircentral.net/id/eprint/1467

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