Numerical investigation of a PCM-based heat sink with internal fins: Constant heat flux

V. Shatikian, G. Ziskind, R. Letan

Research output: Contribution to journalArticlepeer-review

204 Scopus citations

Abstract

Melting of a phase change material (PCM) is studied in a heat sink with vertical internal fins and a horizontal base to which a constant heat flux is applied. The phase change material is stored between the fins. A detailed parametric investigation explores various fin height and thickness, PCM layer thickness, and applied heat flux. Transient numerical simulations are performed using the Fluent 6 software. The results show how the transient phase change process depends on the heat flux from the base, heat capacity of the PCM, and fin dimensions. Dimensional analysis of the results is performed, and the generalized results are presented in terms of the melt fractions and Nusselt numbers vs. the Fourier, Stefan and Rayleigh numbers.

Original languageEnglish
Pages (from-to)1488-1493
Number of pages6
JournalInternational Journal of Heat and Mass Transfer
Volume51
Issue number5-6
DOIs
StatePublished - 1 Mar 2008
Externally publishedYes

ASJC Scopus subject areas

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

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