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Maximisation de la plage de température d’un réfrigérateur magnétocalorique à l’état totalement solide à compresseur alternatif.

Maximizing the temperature span of a reciprocating fully-solid-state magnetocaloric refrigerator.

Auteurs : HE J., YA C., LU B., ZHANG Y., ZHOU Y.

Type d'article : Article de la RIF

Résumé

Magnetocaloric refrigeration demonstrates environmental friendliness and high efficiency, and is widely recognized as a promising substitute for vapor compression refrigeration. However, the heat transfer fluids present in traditional magnetocaloric refrigerator limits temperature gradient and lowers the cooling power. Herein, this paper proposes a reciprocating fully-solid-state magnetocaloric refrigerator. The specially designed double-layer structural enables the spontaneous completion of heat regeneration process. The heat-transfer configurations inside or between magnetocaloric materials have been optimized to explore the optimal cool ing performance. The heat transfer model has been validated by experiments. The finite element simulation results show that by using gadolinium as magnetocaloric material and the applied magnetic field is 1.0 T, a maximum no-load temperature span of 43.10 K is achieved at the triangle internal heat-transfer configuration, the Peltier’s input voltage of 0.5 V and contact time of 30 s. The integrated Peltier system exhibits a markedly lower energy-cost ratio, which reveals sufficient potential for practical application. In addition, the proposed improvements are beneficial for guiding the design and optimization of solid-state magnetocaloric refrigerators.

Documents disponibles

Format PDF

Pages : 12 p.

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Maximizing the temperature span of a reciprocating fully-solid-state magnetocaloric refrigerator.
  • Identifiant de la fiche : 30034491
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 181
  • Date d'édition : 01/2026
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2025.10.005

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