Multi-layer PCM solidification in a finned triplex tube considering natural convection

Sefidan, AM; Sojoudi, A; Saha, SC; Cholette, M

Multi-layer PCM solidification in a finned triplex tube considering natural convection

Sefidan, AM Sojoudi, A Saha, SC

Cholette, M

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Publication Type:: Journal Article
Citation:: Applied Thermal Engineering, 2017, 123 pp. 901 - 916
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Sefidan, AM	en_US
dc.contributor.author	Sojoudi, A	en_US
dc.contributor.author	Saha, SC https://orcid.org/0000-0002-9962-8919	en_US
dc.contributor.author	Cholette, M	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Applied Thermal Engineering, 2017, 123 pp. 901 - 916	en_US
dc.identifier.issn	1359-4311	en_US
dc.identifier.uri	http://hdl.handle.net/10453/123928
dc.description.abstract	© 2017 Elsevier Ltd Efficient latent heat storage systems represent an important opportunity to improve the thermal performance and operational capability of industrial systems (e.g. solar thermal). In this paper, numerical study is performed to evaluate the heat transfer and solidification features, phase change period and temperature distribution of double-layer Phase Changing Materials (PCM) in a finned triplex tube. A two-dimensional finite volume numerical technique is used to solve the governing equations considering conduction and convection heat transfer mechanisms at a fixed Rayleigh number of 106. After comparing the results for single and double layer configurations, possible arrangements of two different PCMs are discussed in terms of different thicknesses of each PCM, fin sizes and different heat transfer fluid temperatures. Results are illustrated as the form of temperature, liquid fraction, stream function and velocity magnitude contours and their changes over the freezing time. Variation of liquid fraction values, average and minimum temperatures of layers in a double-layer PCM are reported for better insight into the heat transfer features of the latent heat thermal energy storage system to enable uniform discharging designs and balance the phase changing rate within the whole annulus.	en_US
dc.relation.ispartof	Applied Thermal Engineering	en_US
dc.relation.isbasedon	10.1016/j.applthermaleng.2017.05.156	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Energy	en_US
dc.title	Multi-layer PCM solidification in a finned triplex tube considering natural convection	en_US
dc.type	Journal Article
utslib.citation.volume	123	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	123	en_US

Abstract:

© 2017 Elsevier Ltd Efficient latent heat storage systems represent an important opportunity to improve the thermal performance and operational capability of industrial systems (e.g. solar thermal). In this paper, numerical study is performed to evaluate the heat transfer and solidification features, phase change period and temperature distribution of double-layer Phase Changing Materials (PCM) in a finned triplex tube. A two-dimensional finite volume numerical technique is used to solve the governing equations considering conduction and convection heat transfer mechanisms at a fixed Rayleigh number of 106. After comparing the results for single and double layer configurations, possible arrangements of two different PCMs are discussed in terms of different thicknesses of each PCM, fin sizes and different heat transfer fluid temperatures. Results are illustrated as the form of temperature, liquid fraction, stream function and velocity magnitude contours and their changes over the freezing time. Variation of liquid fraction values, average and minimum temperatures of layers in a double-layer PCM are reported for better insight into the heat transfer features of the latent heat thermal energy storage system to enable uniform discharging designs and balance the phase changing rate within the whole annulus.

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http://hdl.handle.net/10453/123928