A comprehensive review of hydrodynamic mechanisms and heat transfer characteristics for microencapsulated phase change slurry (MPCS) in circular tube

Liu Yang, Shuli Liu, Hongfei Zheng

Research output: Contribution to journalReview article

Abstract

Microencapsulated phase change slurry (MPCS) shows remarkable merits especially in narrow temperature range and high energy density for the thermal energy application. It combines the advantages of the carrier fluid and the phase change materials. However, the performance of slurry is limited by the poor thermal conductivity and pumping energy of microcapsules. This paper reviews the extensive research findings of the rheological behaviours, the hydrodynamic properties, the heat transfer characteristics and the heat transfer enhancement for MPCS. The aims are to remark the research progresses about the flow and heat transfer performance, as well as to promote further study in this field. The paper presents the basic thermophysical parameters for MPCS, such as phase change temperature, specific heat capacity, thermal conductivity and sub-cooling. Then, the state of the art in rheological behaviours and hydrodynamic properties for MPCS are analysed. The present work compares the existing literatures towards to the forced convective heat transfer characteristics achieved through experimental and numerical investigations. Furthermore, the melting/solidifying process, the enhancement mechanisms of heat transfer and a plenty of enhanced techniques are elaborated. This paper also reports several representative applications of MPCS in recent years. It is expected that this work can give interesting and valuable insights on the hydrodynamic mechanisms and heat transfer characteristics of MPCS, and promote the further studies in strengthening the comprehensive performance of MPCS.
Original languageEnglish
Article number109312
JournalRenewable & Sustainable Energy Reviews
Volume114
Early online date7 Aug 2019
DOIs
Publication statusPublished - Oct 2019

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Hydrodynamics
Heat transfer
Specific heat
Thermal conductivity
Phase change materials
Thermal energy
Melting
Cooling
Temperature
Fluids

Keywords

  • Applications
  • Comprehensive performance
  • Heat transfer characteristics
  • Heat transfer enhancement
  • Hydrodynamic mechanisms
  • Microencapsulated phase change slurry (MPCS)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

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abstract = "Microencapsulated phase change slurry (MPCS) shows remarkable merits especially in narrow temperature range and high energy density for the thermal energy application. It combines the advantages of the carrier fluid and the phase change materials. However, the performance of slurry is limited by the poor thermal conductivity and pumping energy of microcapsules. This paper reviews the extensive research findings of the rheological behaviours, the hydrodynamic properties, the heat transfer characteristics and the heat transfer enhancement for MPCS. The aims are to remark the research progresses about the flow and heat transfer performance, as well as to promote further study in this field. The paper presents the basic thermophysical parameters for MPCS, such as phase change temperature, specific heat capacity, thermal conductivity and sub-cooling. Then, the state of the art in rheological behaviours and hydrodynamic properties for MPCS are analysed. The present work compares the existing literatures towards to the forced convective heat transfer characteristics achieved through experimental and numerical investigations. Furthermore, the melting/solidifying process, the enhancement mechanisms of heat transfer and a plenty of enhanced techniques are elaborated. This paper also reports several representative applications of MPCS in recent years. It is expected that this work can give interesting and valuable insights on the hydrodynamic mechanisms and heat transfer characteristics of MPCS, and promote the further studies in strengthening the comprehensive performance of MPCS.",
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