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Performances d’un nouveau matériau de stockage thermique de froid dans un système de conditionnement d’air adaptéutilisant différentes stratégies de stockage.

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

Auteurs : WANG X., DENNIS M., JIANG J., et al.

Type d'article : Article, Article de la RIF

Résumé

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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Format PDF

Pages : 259-269

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    20 €

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    Gratuit

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Détails

  • Titre original : Performance of a novel cold thermal storage material in an emulated air conditioning system using different storage strategies.
  • Identifiant de la fiche : 30026585
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 104
  • Date d'édition : 08/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.05.038

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