4.8 Article

Experimental study of the thermal characteristics of phase change slurries for active cooling

期刊

APPLIED ENERGY
卷 91, 期 1, 页码 366-374

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2011.10.004

关键词

Phase change material; Slurry; Paraffin-water emulsion; Thermophysical property; Heat transport

资金

  1. UK Engineering and Physical Science Research Council (EPSRC) [EP/H004181/1]
  2. Engineering and Physical Sciences Research Council [EP/H004181/1] Funding Source: researchfish
  3. EPSRC [EP/H004181/1] Funding Source: UKRI

向作者/读者索取更多资源

Phase change materials (PCMs) are increasingly being used for thermal energy storage in buildings and industry to produce energy savings and reduce carbon dioxide emissions. PCM slurries are also being investigated for active thermal energy storage or as alternatives to conventional single phase fluids because they are pumpable and have advanced heat transport performance with phase change. The present study investigates several types of phase change materials for the preparation of PCM slurries which have potential for cooling applications. The thermophysical properties of paraffin in water emulsions, such as latent heat of fusion, melting and freezing temperature ranges, viscosity and the effect of surfactants, have been tested using appropriate experimental techniques. It has been identified that the use of small quantities of higher melting temperature paraffin and surfactants in the emulsion can reduce the effect of supercooling and increase the useful heat of fusion. However there are negative impacts on viscosity which should be considered in heat transport applications. (C) 2011 Elsevier Ltd. All rights reserved.

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