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Formation, distribution et circulation des gouttelettes d’huile dans le plénum de compresseur.

Formation, distribution, and movement of oil droplets in the compressor plenum.

Auteurs : JIU X., HRNJAK P.

Type d'article : Article, Article de la RIF

Résumé

Oil is important to compressors, but it brings some side effects on the performance of refrigeration systems. Discharge valve or orifice in the compressor plenum is the gateway for the oil to leave the compressor and circulate in the system. The space of the compressor plenum has the potential to separate the oil mist from the refrigerant so that oil circulation ratio (OCR) is reduced. In this study, the formation, distribution, and movement of oil droplets in the plenum are investigated through visualization and CFD simulation. Videos of oil atomization are captured by the high-speed camera to describe how oil mist is formed. The distribution of droplet size and velocity is quantified by video processing techniques. Discrete phase model gives the numerical approach to study the oil droplet movement inside the compressor plenum. The numerical simulation is verified by comparing visualization results with simulation results. The oil flow phenomenon and its quantification provide important information for the design of separation structure incorporated in the compressor. Also, a set of tools are developed and verified to study the oil droplets behavior in different types of compressor plenums.

Documents disponibles

Format PDF

Pages : 184-194

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 : Formation, distribution, and movement of oil droplets in the compressor plenum.
  • Identifiant de la fiche : 30024682
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 93
  • Date d'édition : 09/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.06.020

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