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Supermarket refrigeration system charge reduction using cascade systems.

Réduction de la charge d'un système frigorifique de supermarché par utilisation de systèmes en cascade.

Numéro : pap. ID106

Auteurs : SHARMA V., FRICKE B., BANSAL P.

Résumé

Multiplex direct expansion (DX) refrigeration systems using hydrofluorocarbon (HFC) refrigerants, commonly employed in supermarkets, have a significant direct impact on the environment due to high refrigerant charge and the high Global Warming Potential (GWP) of the refrigerant. Thus, cascade systems and secondary loop systems using carbon dioxide (CO2) are becoming popular alternatives to the multiplex DX system due to their reduced refrigeration charge and the lower GWP of the refrigerant. In this paper, a comparative study of the CO2 cascade systems along with the baseline R404A multiplex DX system is performed. Also, a Life Cycle Climate Performance (LCCP) comparison of these systems in various cities in China is performed. In this study, it was found that by switching from a R404A multiplex DX system to a combined secondary loop/cascade system, the refrigerant charge can be reduced by 40% with a small decrease in system performance (up to 2%), resulting in an overall decrease in lifetime greenhouse gas emissions.

Documents disponibles

Format PDF

Pages : 7 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 : Supermarket refrigeration system charge reduction using cascade systems.
  • Identifiant de la fiche : 30012535
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Date d'édition : 02/08/2014

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