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Évaluation expérimentale d’un système de refroidissement élastocalorique à compression.

Experimental evaluation of a compressive elastocaloric cooling system.

Numéro : pap. 2385

Auteurs : QIAN S., WANG Y., GENG Y., et al.

Résumé

Elastocaloric cooling has been recognized as the most potential technology to compete with the state-of-the-art vapor compression cooling systems. The elastocaloric effect refers to the latent heat associated with the stress-induced martensitic phase transformation process in shape memory alloys (SMA). In this paper, the latest test results of a previously developed elastocaloric cooling system are demonstrated. Since the first generation prototype resulted in the system temperature lift of 1.5 K and cooling capacity of 38 W, the following system design modifications were made to improve system performance. Better alignment of linear actuator to SMA tubes enabled more SMA tubes per bed. Plastic tubing in loading heads reduced the heat loss. In addition, inserting plastic blocks inside SMA tubes reduced heat transfer fluid residing inside each Ni-Ti tube and reduced the cyclic loss associated with periodic heating and cooling of the heat transfer fluid. After applying these modifications to the system, the system temperature lift was improved to 4.7 K. Furthermore, 6.1 K system temperature lift was predicted when assuming no pump’s parasitic heat generation and no heat conduction loss to the supporting frame in each bed.

Documents disponibles

Format PDF

Pages : 8 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Experimental evaluation of a compressive elastocaloric cooling system.
  • Identifiant de la fiche : 30018740
  • Langues : Anglais
  • Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 11/07/2016

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