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Conception et performance d'un réfrigérateur rotatif à aimant permanent.

Design and performance of a permanent-magnet rotary refrigerator.

Auteurs : ZIMM C., BOEDER A., CHELL J., et al.

Type d'article : Article, Article de la RIF

Résumé

In order to demonstrate the potential of magnetic refrigeration to provide useful cooling near room temperature, Astronautics Corporation of America constructed a rotary magnetic refrigerator (RMR) in 2001. The RMR uses the active magnetic regenerator (AMR) cycle with an aqueous heat transfer fluid. The required change in magnetic field is produced by the rotation of a wheel packed with porous beds of magnetocaloric material through a 1.5 T Nd(2)Fe(14)B permanent magnet with steel flux concentration poles. A pump, and valves mounted to the wheel, control heat transfer fluid flow through the magnetocaloric beds and heat exchangers. This rotary design allows quiet, reliable operation over a range of frequencies (0.5-4 Hz), heat transfer fluid flow rates and cooling power. The performance of the device using Gd and Gd alloy spherical particles is reported and analyzed. The authors also describe the performance effects of introducing layered beds and an alloy with a first order magnetic transition.

Documents disponibles

Format PDF

Pages : 1302-1306

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 : Design and performance of a permanent-magnet rotary refrigerator.
  • Identifiant de la fiche : 2006-2913
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 8
  • Date d'édition : 12/2006

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