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Comparaisons énergétiques entre les systèmes au CO2 en cascade et les systèmes au R404A de dernière génération.

Energy comparisons between CO2 cascade systems and state of the art R404A systems.

Auteurs : KNUDSEN H. J. H., PACHAI A. C.

Résumé

In 2002, two cascade systems with CO2 and R404A were installed. The display cabinets and cooling/freezing rooms are cooled directly by CO2 in the low temperature part of the cascade plant, while the high temperature part of the cascade plant is using R404A. Initial monitoring of the absorbed power and the observed employed compressors lead to the belief that there was an energy reduction, but it was difficult to quantify. The problem is that two supermarkets are not identical. The Danish EPA has sponsored a research project with the purpose to find a method to make the data collected comparable and to put numbers on the energy reductions observed. This presentation describes the methods used to compare state of the art R404A technology systems and two CO2/R404A cascade systems.

Documents disponibles

Format PDF

Pages : 2004-2

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 : Energy comparisons between CO2 cascade systems and state of the art R404A systems.
  • Identifiant de la fiche : 2005-2600
  • Langues : Anglais
  • Source : Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
  • Date d'édition : 01/08/2004

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