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Performance of a novel cold thermal storage material in an emulated air conditioning system using different storage strategies.

Author(s) : WANG X., DENNIS M., JIANG J., et al.

Type of article: Article, IJR article

Summary

With the increasing use of thermal energy storage in space cooling systems, various phase change materials have been explored. Semi-clathrate hydrates of quaternary ammonium salts can form under atmosphere pressure at applicable temperature ranges of air conditioning systems, among which tetrabuty- lammonium bromide (TBAB) hydrate has aroused most intensive interests in the past decade. This paper presents an experimental study to modify the phase equilibrium point of a novel TBAB hydrate based cold storage material, and investigates the material’s performance in an emulate cold storage air con- ditioning system at various operation modes. Single charging and discharging operations, tank charging with chiller delivering load, and tank discharging with chiller delivering load operations with or with- out using bypass, are implemented to achieve full-storage and partial-storage strategies. The temperature distribution, charging and discharging rate and capacity are studied as key indexes to evaluate the cold storage performance. It was during a tank charging-chiller delivering load operation, using bypass is un- favourable for thermal storage effectiveness. During a tank discharging-chiller delivering load operation, chiller starting at a later stage with bypass is favourable for the system efficiency.

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Pages: 259-269

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Details

  • Original title: Performance of a novel cold thermal storage material in an emulated air conditioning system using different storage strategies.
  • Record ID : 30026585
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 104
  • Publication date: 2019/08
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.05.038

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