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Systèmes frigorifiques au R744 transcritique innovants entièrement intégrés pour un avenir sans HFC dans les supermarchés dans les climats chauds.

Innovative fully integrated transcritical R744 refrigeration systems for a HFC-free future of supermarkets in warm and hot climates.

Auteurs : GULLO P.

Type d'article : Article, Article de la RIF

Résumé

The regulatory pressures on environmentally deleterious refrigerants have been growing more intense, prompting CO2 to draw ever-widening attraction as the sole working fluid (R744) in supermarket applications. Direct space heating and cooling is considered as one of the most appealing techniques to promote the diffusion of “CO2 only” systems in warm and hot climates. However, to the best of the author’s knowledge, the energy and environmental benefits related to its adoption have not been estimated yet. The results of this work revealed that “CO2 only” units implementing direct space heating and cooling offer an annual energy saving by up to 33.3% as well as a reduction in carbon footprint by up to 89.5% compared to the systems using hydrofluorocarbons (HFCs) in high ambient temperature countries. It could be concluded that direct space heating and cooling is a very good prospect to lead to a HFC-free future of supermarkets, even in hot climates.

Documents disponibles

Format PDF

Pages : 283-310

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 : Innovative fully integrated transcritical R744 refrigeration systems for a HFC-free future of supermarkets in warm and hot climates.
  • Identifiant de la fiche : 30027071
  • Langues : Anglais
  • Sujet : Pays en développement
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 108
  • Date d'édition : 12/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.09.001

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