Phase change heat storage in an enclosure with vertical pipe in the center

This paper documents the fundamentals of heat storage by melting a phase-change material inside a cylindrical enclosure with a vertical heated pipe on its axis. The phenomenon is studied analytically and numerically. The analysis consists of the scale analysis of the early stages of natural convecti...

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Bibliographic Details
Published inInternational journal of heat and mass transfer Vol. 72; pp. 329 - 335
Main Authors Lorente, S., Bejan, A., Niu, J.L.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2014
Elsevier
Subjects
Civil Engineering
Convection
Enclosure
Energy storage
Engineering Sciences
Heat storage
Liquids
Mathematical analysis
Melting
Natural convection
Phase change
Phase change material
Pipe
Scale analysis
Natural convection
Melting
Phase change material
Scale analysis
Energy storage
convection
acid
unit
tube
performance
system
thermal-energy storage
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Summary:This paper documents the fundamentals of heat storage by melting a phase-change material inside a cylindrical enclosure with a vertical heated pipe on its axis. The phenomenon is studied analytically and numerically. The analysis consists of the scale analysis of the early stages of natural convection in the liquid, and an analysis of the entire duration of the melting process. The numerical simulations cover the entire process, and validate all the features predicted by theory.
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ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2014.01.021