Flow and heat transfer behaviors of phase change material slurries in a horizontal circular tube

Xichun Wang, Jianlei Niu, Yi Li, Xin Wang, Binjiao Chen, Ruolang Zeng, Qingwen Song, Yinping Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

138 Citations (Scopus)

Abstract

The flow and convective heat transfer behaviors of microencapsulated phase change material (MPCM) slurries in a horizontal circular tube have been experimentally investigated. The slurry consisted of microencapsulated 1-bromohexadecane (C16H33Br) and water, with the mass fractions of MPCM varying from 5% to 27.6%. The pressure drop and local heat transfer coefficients were measured, and the influences of capsule fractions, heating rates, and flow structures on heat transfer performance were also studied. Heat transfer coefficients measured for MPCM slurry are significantly higher than for those for single-phase fluid flow in laminar flow conditions, but exhibit more complicated phenomena at low turbulent conditions. Moreover, a new simple heat transfer correlation equation was proposed that accurately predicts the local heat transfer coefficients of laminar MPCM slurry flow in a horizontal circular tube.
Original languageEnglish
Pages (from-to)2480-2491
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume50
Issue number13-14
DOIs
Publication statusPublished - 1 Jul 2007

Keywords

  • Laminar slurry flow
  • Local heat transfer coefficient
  • MPCM slurry
  • Test section
  • Turbulent slurry flow

ASJC Scopus subject areas

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

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