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Explosion de propane similaire à une explosion de diesel lors de l’aspiration du frigorigène d’un conditionneur d'air.

Diesel explosion of propane at pump-down of air conditioner.

Numéro : pap. 1168

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

Résumé

Propane (R290) is a potential alternative refrigerant for reducing greenhouse gas emissions from refrigeration and air conditioning equipment; it is necessary to carry out an adequate safety assessment because of its high flammability. This study focuses on compressor explosion accidents at pump-down of split air conditioners. Pump-down is an operation used to gather an entire refrigerant into an outdoor unit by closing the outlet valve of the outdoor unit and forcefully driving the compressor. If the entrance of air into the tube for the refrigerant occurs owing to an error during operation, the lubricating oil in the compressor may cause a self-ignition and a diesel explosion. Experiments were conducted to reproduce the diesel explosion, and its characteristics were examined. A mixture of air, a refrigerant, and lubricating oil was compressed by a compressor and an explosion occurs under certain conditions. R290 was used as the refrigerant, and its safety was evaluated in comparison with conventional fluorocarbon refrigerants.

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Format PDF

Pages : 8

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 explosion of propane at pump-down of air conditioner.
  • Identifiant de la fiche : 30023609
  • Langues : Anglais
  • Source : 13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
  • Date d'édition : 18/06/2018
  • DOI : http://dx.doi.org/10.18462/iir.gl.2018.1168

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