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Analysis of PCM slurries and PCM emulsions as heat transfer fluids.

Author(s) : DELGADO M., PEÑALOSA C., MARÍN J., et al.

Summary

Microencapsulated phase change materials suspensions and PCM emulsions have been developed during the last 10 years to be utilized as heat transfer fluids. The main interest in these fluids is the rise of the heat capacity associated to the phase change, with a consequent pumping power reduction as well as a higher heat transfer versus pressure drop ratio. However, several authors present in their experimental researches heat transfer coefficients that are lower than the heat transfer coefficient for water. This heat transfer coefficient is influenced by several factors, and mainly, by the fluid turbulence level and the PCM concentration. Due to such controversial information, an experimental study is reasonable. In fact, a new experimental methodology is proposed to determine the local values of the convective heat transfer coefficient under laminar flow conditions.

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Pages: 2009-4

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Details

  • Original title: Analysis of PCM slurries and PCM emulsions as heat transfer fluids.
  • Record ID : 2009-1649
  • Languages: English
  • Source: 8th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
  • Publication date: 2009/06/03

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