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Étude de la décomposition du R-1132(E) en tant que frigorigène à très faible PRP.

Study of decomposition of R-1132(E) as ultra-low GWP refrigerants.

Auteurs : GOTO T., USUI T., YOSHIMURA T., YAMADA Y.

Type d'article : Article de la RIF

Résumé

The use of hydrofluorocarbons (HFCs) as refrigerants in air-conditioning and refrigeration systems is being re-examined globally due to their high Global Warming Potential (GWP) and large environmental load. Next-generation refrigerants with low GWP are currently attracting a lot of attention as a replacement for conventional refrigerants. Recently, we have developed a novel refrigerant, trans-1,2-difluoroethylene (R-1132(E)), which has similar saturated vapor pressure to R-32 and an extremely low GWP value of 0.0056. R-474A and R-479A, refrigerants containing R-1132(E), are already registered with ASHRAE standard 34 and ISO 817 and are expected to become next-generation refrigerants. However, due to chemical stability issues, a self-decomposition reaction of R-1132(E) can occur. For this study, both R-1132(E) and the blend of R-1132(E) and R-1234yf have been investigated. We have developed methods for evaluating the self-decomposition reaction for three ignition sources that may occur in air conditioners and clarified the conditions under which the self-decomposition reaction of R-1132(E) and R-1234yf blends does not occur.

Documents disponibles

Format PDF

Pages : 71-77

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 : Study of decomposition of R-1132(E) as ultra-low GWP refrigerants.
  • Identifiant de la fiche : 30032353
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 163
  • Date d'édition : 07/2024
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2024.04.013

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