Tian, Yuan and Zhao, Chang-Ying (2009) Numerical investigations of heat transfer in phase change materials using non-equilibrium model. In: The Eleventh UK National Heat Transfer Conference, London, UK , 6-8 September 2009. Published in: Proceedings of 11th UK National Heat Transfer Conference

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Abstract

Phase change materials (PCMs) are drawing increasing attention of researchers nowadays, and they play a pivotal role in thermal energy storage (TES) used in renewable energy resources applications, since these renewable energy, such as solar energy, wind energy and tidal energy, are intermittent and not available at any time. However, most of PCMs suffer from low thermal conductivities prolonging the charging and discharging processes. Metal foams with relatively high thermal conductivities, are believed to be able to enhance heat transfer performance of PCMs for those applications. In this paper, a two-equation non-thermal equilibrium model has been employed to tackle the phase change heat transfer problem in PCMs composites embedded into metal foams. Numerical results show good agreement with experimental data, and indicate that a better heat transfer performance can be achieved by using the metal foams of smaller pore size and smaller porosity, and heat transfer performance of PCMs can be enhanced by up to 10 times by embedded metal foams into PCMs.

Item Type:	Conference Item (Paper)
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Heat storage -- Design, Heat -- Transmission -- Mathematical models, Metal foams -- Mathematical models
Journal or Publication Title:	Proceedings of 11th UK National Heat Transfer Conference
Publisher:	Queen Mary College, University of London
Date:	September 2009
Status:	Not Peer Reviewed
Funder:	Engineering and Physical Sciences Research Council (EPSRC), University of Warwick
Grant number:	EP/F061439/1 (EPSRC), RD07110 (UoW)
Conference Paper Type:	Paper
Title of Event:	The Eleventh UK National Heat Transfer Conference
Type of Event:	Conference
Location of Event:	London, UK
Date(s) of Event:	6-8 September 2009
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URI:	http://wrap.warwick.ac.uk/id/eprint/49195

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