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

S. Lorente, A. Bejan, Jianlei Niu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

54 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)329-335
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Publication statusPublished - 1 May 2014


  • Energy storage
  • Melting
  • Natural convection
  • Phase change material
  • Scale analysis

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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