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Document IIF

Amélioration du refroidissement élastocalorique de l’air par une méthode d’enroulement avec gain d’efficacité énergétique.

Advanced elastocaloric air cooling by coil-bending with an energy-efficient performance.

Numéro : 0006

Auteurs : LI X., HUA P., SUN Q.

Résumé

Elastocaloric cooling is an environment-friendly technology that could supplant greenhouse-gas refrigerants. The pursuit of compact and efficient elastocaloric devices is the cornerstone of its developmental trajectory. In this study, we propose an alternative actuation method called coil-bending to achieve the elastocaloric cooling in lower driving force. Through the implementation of coil-bending, we have developed a compact elastocaloric air cooler with the large specific heat transfer area (12.6 cm2·g−1) and the constant cold zone of NiTi wires. This innovative design allows continuous cold air output through the constant cold zone. The elastocaloric air cooler outputs a continuous cold airflow with a temperature drop of 10.6 K and achieves a specific cooling power of 2.5 W·g−1, all at a low specific driving force of 26 N·g−1. Notably, the cooler exhibits a system coefficient of performance of 3.7 (ratio of cooling power to rotated mechanical power). The performance of our coil-bending system, with its efficient and compact design, showcases the viability of elastocaloric cooling technology in the field of air conditioning.

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Format PDF

Pages : 6

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  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Advanced elastocaloric air cooling by coil-bending with an energy-efficient performance.
  • Identifiant de la fiche : 30032614
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 10th IIR Conference on Caloric Cooling and Applications of Caloric Materials
  • Date d'édition : 24/08/2024
  • DOI : http://dx.doi.org/10.18462/iir.thermag.2024.0006

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