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Développement et amélioration des performances d’un réfrigérateur élastocalorique compact.

Development and performance enhancement of a compact elastocaloric refrigerator.

Numéro : 0231

Auteurs : XU S., CHEN Y., YAO S., WANG Y., QIAN S.

Résumé

Elastocaloric cooling utilizes the phase transition of elastocaloric materials induced by uniaxial stress. Existing elastocaloric cooling prototypes were too cumbersome, as manifested by the state-of-the-art system-level volumetric cooling power of 0.53 W/L. To address this challenge, this study introduced our single-stage wire-based elastocaloric refrigerator as the baseline. The baseline refrigerator achieved a temperature span of 9.2 K in adiabatic condition and 5.8 K in refrigeration mode, and a system-level volumetric cooling power of 0.69 W/L. To further improve its performance, two new schemes were proposed, including substituting Ni-Ti wires with Ni-Ti plates and introducing a cascaded architecture. The single-stage Ni-Ti plate-based refrigerator could theoretically reach the temperature span of 12.0 K and 11.8 K in adiabatic condition and refrigeration mode, while the cascaded scheme achieved 22.6 K and 18.4 K, respectively. In addition, the single-stage plate-based refrigerator features 0.80 W/L volumetric cooling power, while the cascaded scheme provided 0.46 W/L.

Documents disponibles

Format PDF

Pages : 9 p.

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 : Development and performance enhancement of a compact elastocaloric refrigerator.
  • Identifiant de la fiche : 30031589
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0231

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