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Using porous metals to enhance heat transfer in phase change materials (PCMs)

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Tian, Y. (Yuan) and Zhao, Changying (2011) Using porous metals to enhance heat transfer in phase change materials (PCMs). In: 2011 Chinese Society of Engineering Thermophysics Heat and Mass Transfer Conference : 2011年中国工程热物理学会传热传质学术会议, Xi’an, China, 14-17th Oct 2011. Published in: Proceedings of the 2011 Chinese Society of Engineering Thermophysics Heat and Mass Transfer Conference pp. 208-212.

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Official URL: http://hmc11.xjtu.edu.cn/

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Abstract

Heat transfer enhancement mechanism of Phase Change Materials (PCMs) by high-porosity metal foams was investigated in this study. The Darcy-Brinkman-Forchheimer modified flow model was employed in the
numerical simulations to consider the non-Darcy effects in metal foams: viscous flow resistance and inertia flow resistance. Local Non-Thermal Equilibrium (LNTE)
model was used to consider the temperature difference between PCM and metal foam. The results showed that in the solid and two-phase zone the heat transfer rate
in PCMs was significantly increased by metal foams, whilst in the liquid zone, natural convection was found to be weakened by the large flow resistance of metal
foams, despite which the overall heat transfer rate was still higher than the case where metal foams were not used. Metal foams of low porosity and high pore
density were found to perform better than the ones of high porosity and low pore density.

Item Type: Conference Item (Paper)
Subjects: Q Science > QC Physics
T Technology > TP Chemical technology
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Heat -- Transmission, Metal foams
Journal or Publication Title: Proceedings of the 2011 Chinese Society of Engineering Thermophysics Heat and Mass Transfer Conference
Publisher: Chinese Society of Engineering Thermophysics
Official Date: 2011
Dates:
DateEvent
2011Published
Page Range: pp. 208-212
Status: Peer Reviewed
Publication Status: Published
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: 2011 Chinese Society of Engineering Thermophysics Heat and Mass Transfer Conference : 2011年中国工程热物理学会传热传质学术会议
Type of Event: Conference
Location of Event: Xi’an, China
Date(s) of Event: 14-17th Oct 2011

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