Conjugate heat transfer analysis of PCM suspensions in a circular tube under external cooling convection: Wall conduction effects

C. J. Ho, Z. C. Wang, R. H. Chen, Chi Ming Lai

Research output: Contribution to journalArticle

Abstract

In this paper, a numerical method is used to investigate the conjugate heat transfer of a phase change material (PCM) suspension in a circular tube under external cooling convection. The following parameters and ranges were considered: dimensionless tube wall thickness, tw (0-0.5); wall-to-fluid thermal conductivity ratio, (0.1-10); volumetric fraction of PCM particles, cv (0.1); Biot number, Bio(1); Stefan number, Ste (0.1); and Peclet number, Pe (1000). The results show that the wall thermal conductivity considerably affects the outer/inner wall temperature of the tube, the average temperature of the working fluid, and the volumetric liquid fraction of PCM particles. Thus, wall conduction effects must be properly accounted for to model heat transfer in a PCM suspension in tube flow.

Original languageEnglish
Article number2034
JournalApplied Sciences (Switzerland)
Volume10
Issue number6
DOIs
Publication statusPublished - 2020 Mar 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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