Effect of nanofluid concentration and composition on laminar jet impinged cooling of heated steel plate

Singh, Manoj K and Yadav, Darvik and Arpit, Sankalp and Mitra, Sourav and Saha, Sandip K (2016) Effect of nanofluid concentration and composition on laminar jet impinged cooling of heated steel plate. In: APPLIED THERMAL ENGINEERING, 100 . pp. 237-246.

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Abstract

In this paper, an experimental investigation of heated steel surface cooled by laminar nanofluid jets and its comparison with water jets are presented. The effects of concentration and jet velocity of TiO2 based nanofluid on cooling rate are evaluated experimentally. Further, the cooling rates of TiO2, Al2O3. and SiO2 nanofluids with same concentration and velocity are compared. The total heat flux is deduced from the experimentally obtained cooling curves by using a one-dimensional finite volume method based transient inverse heat transfer model. It is found that heat transfer is enhanced using nanofluid jets when compared to water. Increase in concentration of TiO2 nanoparticle in nanofluid leads to an increase in CHF. Further, it is also observed that the shift from film boiling to transition boiling is faster for nanofluid jet cooled surface. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	APPLIED THERMAL ENGINEERING
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Additional Information:	Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords:	Nanofluid; Laminar jet impingement; Nanoparticles; Concentration; Boiling; CHF
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	08 Jul 2016 06:37
Last Modified:	08 Jul 2016 06:37
URI:	http://eprints.iisc.ac.in/id/eprint/54154

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