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Remplacement d'un frigorigène HCFC-22 par des frigorigènes de remplacement immédiat et durables dans un système à compression de vapeur biétagé.

Replacement of HCFC-22 refrigerant with a drop-in and long term alternative fluids in a two-stage compression refrigeration plant.

Numéro : pap. B-4

Auteurs : LLOPIS R., CABELLO R., SÁNCHEZ D., et al.

Résumé

The world community has committed to eliminate the HCFC-22 refrigerant to a series of deadlines according to the agreements taken during the 19th Montreal Protocol meeting in September 2007. This phase-out, which is already in progress in European Countries, has been accelerated in Article 5 countries. Refrigerant manufactures offer different drop-in refrigerants to replace R22 in existing equipment by non-ozone depleting substances in order to be able to make full use of the remaining life of the plants or different retrofit refrigerants, the use of which implies modifications to the existing systems. This work aims to contribute to the understanding of the implications of the process of R22 substitution, either with drop-in or retrofitting processes, by presenting a theoretical and experimental analysis of the performance of R22, of two drop-in fluids (R422A, R417B) and a retrofit refrigerant (R404A), in a two-stage vapour compression plant over a wide range of evaporating temperatures for a fixed condensing temperature of 40°C. In this communication the main energy parameters, such as cooling capacity and COP are analysed and discussed.

Documents disponibles

Format PDF

Pages : 9 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 : Replacement of HCFC-22 refrigerant with a drop-in and long term alternative fluids in a two-stage compression refrigeration plant.
  • Identifiant de la fiche : 30004491
  • Langues : Anglais
  • Source : CYTEF 2012. VI Congreso Ibérico y IV Congreso Iberoamericano de Ciencias y Técnicas del Frío, Madrid, España, 22-24 de febrero, 2012.
  • Date d'édition : 22/02/2012

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