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Combustion suppression effect of additives for lubricating oil during Diesel explosion at pump-down of air conditioner.

Effet de suppression de combustion des additifs pour huile lubrifiante pendant une explosion de diesel lors de l’aspiration du frigorigène d’un conditionneur d'air.

Numéro : pap. n. 914

Auteurs : HIGASHI T., DANG C., HIHARA E., et al.

Résumé

Lower global warming potential refrigerants tend to be highly flammable, and therefore, their safety evaluation is necessary. Pump-down is an operation used to collect the entire refrigerant in an air conditioner to its outdoor unit; however, some accidents have been reported where the compressor exploded owing to air contamination because of operational error. In this study, self-ignition of air, refrigerant, and lubricating oil were investigated experimentally. Additives to suppress combustion were mixed with oil and subsequently tested. Compared with the results of pure oil, the flammable range of the mixture became narrower for the oil mixed with the additives. It was revealed that the additives effectively suppressed the combustion at pump-down.

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Pages : 8

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Détails

  • Titre original : Combustion suppression effect of additives for lubricating oil during Diesel explosion at pump-down of air conditioner.
  • Identifiant de la fiche : 30026498
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0914

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