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Document IIF

Un nouveau système de dégivrage passif pour un meuble de vente de produits congelés avec évaporateur en position basse.

A novel passive defrost system for a frozen retail display cabinet with a low evaporator.

Numéro : pap. n. 749

Auteurs : FOSTER A., CAMPBELL R., DAVIES T., et al.

Résumé

An energy efficient thermo-siphon method of defrosting the air coils on a commercial half glass door (HGD)/well retail display cabinet has been developed (FrigescoTM) and the performance compared with the existing electric defrost system under EN ISO 23953 test room conditions. Previous work by (Foster et al, 2013) used a passive thermo-siphon to defrost the top evaporator inside the top (glass door) section and a pump assisted thermo-siphon to defrost the well section. This was due to the head being too low to adequately defrost the well evaporator with a passive thermo-siphon. This work describes a passive thermo-siphon with no pump. To enable the thermo-siphon to operate efficiently the design of the evaporator was optimised. The thermo-siphon heated quicker and melted water faster than the electric defrost. The thermo-siphon used less electrical heat and had an added benefit of free sub-cooling.

Documents disponibles

Format PDF

Pages : 8 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 : A novel passive defrost system for a frozen retail display cabinet with a low evaporator.
  • Identifiant de la fiche : 30015537
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0749

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