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Document IIF

Évaluation de la performance d'un régénérateur magnétique actif pour les applications de refroidissement. 1. Analyse expérimentale et performance thermodynamique.

Performance evaluation of an active magnetic regenerator for cooling applications. 1. Experimental analysis and thermodynamic performance.

Auteurs : TREVIZOLI P. V., NAKASHIMA A. T., PEIXER G. F., et al.

Type d'article : Article, Article de la RIF

Résumé

In this first part of a two-part paper, a new active magnetic regenerator (AMR) laboratory apparatus is presented and evaluated. The setup is composed of a nested Halbach cylinder magnetic circuit (maximum magnetic flux density of 1.69 T) assembled in phase with a double effect displacer that provides the cold and hot blows to the regenerator. A single packed-bed regenerator with 195.5?g of gadolinium spheres is used in a discontinuous (i.e., reciprocating) cycle. The system performance is evaluated in terms of characteristic curves (i.e., cooling capacity as a function of temperature span), coefficient of performance and second-law efficiency as a function of the utilization factor and operating frequency. Maximum values of COP have been identified for a given temperature span. The maximum values of second-law efficiency were obtained at system temperature spans between 15 and 20?K.

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Format PDF

Pages : 192-205

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 : Performance evaluation of an active magnetic regenerator for cooling applications. 1. Experimental analysis and thermodynamic performance.
  • Identifiant de la fiche : 30019905
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 72
  • Date d'édition : 12/2016

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