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Derniers développements sur les frigorigènes à faible GWP pour le froid commercial (les supermarchés).
Latest developments in low global warming refrigerants for commercial supermarket refrigeration.
Numéro : pap. ID: 917
Auteurs : YANA MOTTA S., SPATZ M.
Résumé
New refrigeration system working fluids with the positive attributes of both high thermal performance and low environmental impact are currently in development. These materials maintain the high level of system efficiency we are accustomed to with fluorocarbon refrigerants but with significantly lower global warming impact than current refrigerants. This article is focused on replacements for R-404A which are discussed for supermarket refrigeration applications with the aim of reducing the carbon footprint. Chemical and physical properties, including thermodynamic data, as well as experimental results are compared and contrasted. Testing was performed using typical walk-in cooler freezer equipment. Operating condition cover low and medium temperature applications with box temperatures ranging from -26°C to 10°C. Outdoor ambient temperatures range from 13°C to 35.0°C. Results show promise however they also show that there are trade offs in performance, flammability, and GWP that need to be made.
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Détails
- Titre original : Latest developments in low global warming refrigerants for commercial supermarket refrigeration.
- Identifiant de la fiche : 30001648
- Langues : Anglais
- Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Date d'édition : 21/08/2011
Liens
- Voir les traductions : Últimos avances en refrigerantes de bajo calentamiento global para la refrigeración comercial de supermercados.
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Indexation
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Thèmes :
Thermodynamique et changement d’état;
HFC;
Supermarchés, meubles de vente - Mots-clés : R1234yf; Application commerciale; R1234ze; Supermarché; GWP; Essai; Frigorigène
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