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Modélisation d’un système magnétocalorique pour le refroidissement à l’échelle des kilowatts.

Modelling of a magnetocaloric system for cooling in the kilowatt range.

Auteurs : GOVINDARAJU V. R., VILATHGAMUWA D. M., RAMANUJAN R. V.

Type d'article : Article, Article de la RIF

Résumé

A numerical time-dependent model of an active magnetic regenerator (AMR) was developed for cooling in the kilowatt range. Earlier numerical models have been mostly developed for cooling power in the 0.4 kW range. In contrast, this paper reports the applicability of magnetic refrigeration to the 50 kW range. A packed bed active magnetic regenerator was modelled and the influence of parameters such as geometry and operating parameters were studied for different geometries. The pressure drop for AMR bed length and particle diameter was also studied. High cooling power and coefficient of performance (COP) were achieved by optimization of the diameter of the magnetocaloric powder particles and operating frequency. The optimum operating conditions of the AMR for a cooling capacity of 50 kW was determined for a temperature span of 15K. The predicted coefficient of performance (COP) was found to be ~ 6, making it an attractive alternative to vapour compression systems.

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Pages : 143-153

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Détails

  • Titre original : Modelling of a magnetocaloric system for cooling in the kilowatt range.
  • Identifiant de la fiche : 30011646
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 43
  • Date d'édition : 07/2014

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