Partager

Document IIF

Combustion diesel du mélange huile-frigorigène au cours de l'évacuation du frigorigène dans les conditionneurs d'air.

Diesel combustion of oil and refrigerant mixture during pump-down of air conditioners.

Auteurs : HIGASHI T., SAITOH S., DANG C., et al.

Type d'article : Article, Article de la RIF

Résumé

Compressor-destruction accidents during the pump-down operation of air conditioners were experimentally investigated. Assuming air penetration into refrigerant tubes, the gaseous mixture of the air, refrigerant, and lubricating oil for a compressor was compressed by the compressor with different refrigerant concentrations, and the diesel combustion of the mixture was examined. The compressor was simulated by a small-scale engine. R1234yf, R32, R410A, R134a, R22, and R125 were tested as refrigerants. The mixture burned via adiabatic compression when the refrigerant concentration was low, which means that accidents during the pump-down were caused by the diesel combustion of the mixture. The refrigerant burned and caused intense pressure increase. The mixture without the oil did not burn under any refrigerant concentration, which suggests that oil is necessary for the combustion. These phenomena were observed in the results for R1234yf, R32, R410A, R134a, and R22. Thus, combustion was observed under certain conditions even for refrigerants categorized as non-flammable.

Documents disponibles

Format PDF

Pages : 300-310

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 : Diesel combustion of oil and refrigerant mixture during pump-down of air conditioners.
  • Identifiant de la fiche : 30021947
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 75
  • Date d'édition : 03/2017
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.01.003

Liens


Voir d'autres articles du même numéro (29)
Voir la source

Indexation