Heat transfer characteristics of microencapsulated phase change material slurry in laminar flow under constant heat flux

Ruolang Zeng, Xin Wang, Binjiao Chen, Yinping Zhang, Jianlei Niu, Xichun Wang, Hongfa Di

Research output: Journal article publicationJournal articleAcademic researchpeer-review

99 Citations (Scopus)

Abstract

Due to its large apparent specific heat during the phase change period, microencapsulated phase change material slurry (MPCMS) has been suggested as a medium for heat transfer. In this paper, the convective heat transfer characteristics of MPCMS flowing in a circular tube were experimentally and numerically investigated. The enhanced convective heat transfer mechanism of MPCMS, especially in the thermal fully developed range, was analyzed by using the enthalpy model. Three kinds of fluid-pure water, micro-particle slurry and MPCMS were numerically investigated. The results show that in the phase change heat transfer region the Ste number and the Mr number are the most important parameters influencing the Nusselt number fluctuation profile and the dimensionless wall temperature. Reb, dpand c also influence the Nusselt number profile and the dimensionless wall temperature, but they are independent of phase change process.
Original languageEnglish
Pages (from-to)2661-2670
Number of pages10
JournalApplied Energy
Volume86
Issue number12
DOIs
Publication statusPublished - 1 Jan 2009

Keywords

  • Heat transfer
  • Laminar flow
  • Microencapsulated phase change material
  • Phase change
  • Slurry

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

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