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Oeuvrer en faveur de mélanges de frigorigènes toujours plus respectueux de l'environnement.

Working towards more environmentally friendly refrigerant blends.

Auteurs : COX N.

Résumé

This paper describes ongoing work to identify azeotropic and near azeotropic mixtures with a normal boiling point of between -40 and -80°C. The aim was to match the saturated pressure temperature characteristics and refrigerating capacity of R-410A, whilst achieving higher critical temperatures. Thus, the intended outcome is an extended range of applicability and an improvement in potential energy efficiency. Of a large number of potential combinations, five azeotropic and four near azeotropic mixtures have been identified, all formed from natural refrigerants or synthetic chemicals with a global warming potential (GWP) or less than 150. These mixtures were subject to a variety of further analyses, including thermodynamic, performance and safety assessments, thereby providing a shortlist of the most suitable blends.

Détails

  • Titre original : Working towards more environmentally friendly refrigerant blends.
  • Identifiant de la fiche : 2008-2029
  • Langues : Anglais
  • Sujet : Réglementation, Environnement, Généralités
  • Source : Technological innovations in air-conditioning and refrigeration industry + CD-ROM.
  • Date d'édition : 08/06/2007

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