Partager

Document IIF

Modèle mathématique bidimensionnel d'un régénérateur de réfrigérateur magnétique alternatif fonctionnant à température ambiante.

Two-dimensional mathematical model of a reciprocating room-temperature active magnetic regenerator.

Auteurs : PETERSEN T. F., PRYDS N., SMITH A., et al.

Type d'article : Article, Article de la RIF

Résumé

A time-dependent, two-dimensional mathematical model of a reciprocating active magnetic regenerator (AMR) operating at room-temperature has been developed. The model geometry comprises a regenerator made of parallel plates separated by channels of a heat transfer fluid and a hot as well as a cold heat exchanger. The model simulates the different steps of the AMR refrigeration cycle and evaluates the performance in terms of refrigeration capacity and temperature span between the two heat exchangers. The model was used to perform an analysis of an AMR with a regenerator made of gadolinium and water as the heat transfer fluid. The results show that the AMR is able to obtain a no-load temperature span of 10.9 K in a 1 T magnetic field with a corresponding work input of 93.0 kJ/m3 of gadolinium per cycle. The model shows significant temperature differences between the regenerator and the heat transfer fluid during the AMR cycle. This indicates that it is necessary to use two-dimensional models when a parallel-plate regenerator geometry is used.

Documents disponibles

Format PDF

Pages : 432-443

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Two-dimensional mathematical model of a reciprocating room-temperature active magnetic regenerator.
  • Identifiant de la fiche : 2008-1276
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
  • Date d'édition : 05/2008

Liens


Voir d'autres articles du même numéro (18)
Voir la source

Indexation