Partager

Recommandé par l'IIF / Document IIF

Étude expérimentale des performances du R-454C comme frigorigène de remplacement immédiat pour la mise en régime dans un système de chambre froide.

An experimental study of R-454C pull-down performance as a drop-in refrigerant in a walk-in cold store system.

Auteurs : MOSTAFA A., HASSANAIN M., ELGENDY E.

Type d'article : Article de la RIF

Résumé

Walk-in cold stores represent the majority of commercial refrigeration applications for product cooling and freezing which make it the highest energy consumer in the sector. The present research aims to assess the pull-down performance of a cold store working with R-454C as a drop-in refrigerant for R404a under different product thermal loads and cooling water temperatures. The product thermal load was changed in a wide range of 0, 450W, 900W and 1350W while the cooling water temperature was changed in range of 27 to 33°C. Experimental results presented that the energy consumption increased approximately four times when the product thermal load increased three times from 450W to 1350W. Moreover, the system COP increases by 20% as the cooling water temperature decreases from 33 to 27°C over the presented cold store temperature. Although the system COP increased by 10.8% after switching to R454C, the system cooling capacity decreased by 12.6% and the energy consumption increased by 20.6%.

Documents disponibles

Format PDF

Pages : 170-178

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 : An experimental study of R-454C pull-down performance as a drop-in refrigerant in a walk-in cold store system.
  • Identifiant de la fiche : 30029077
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
  • Date d'édition : 10/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2021.05.029
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres articles du même numéro (41)
Voir la source

Indexation