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Influence des HCFC et des hydrocarbures dans des mélanges de frigorigènes sur la miscibilité des mélanges lubrifiant/frigorigène.

Influence of HCFC and hydrocarbon components in blend refrigerants on oil-refrigerant miscibility.

Auteurs : YUDIN M., BOIARSKI M., MUNDAY C.

Résumé

Many R12 and R22 systems are now being retrofitted to alternative refrigerants, most of which are not fully miscible with mineral oil. To improve oil circulation in retrofitted systems, blend refrigerants containing oil miscible components (HCFC and HC) are often used. An analysis has been made of the influence of both the quantity and the nature of oil miscible blend components on miscibility with mineral oil. Liquid-liquid equilibrium in oil-refrigerants mixtures was calculated using an equation of state model that was validated with binary experimental data. Comparison of R134a based blends showed that a specific oil containing both an HCFC and an HC has the best miscibility.

Détails

  • Titre original : Influence of HCFC and hydrocarbon components in blend refrigerants on oil-refrigerant miscibility.
  • Identifiant de la fiche : 1998-3468
  • Langues : Anglais
  • Source : International Conference on Ozone Protection Technologies. Conference proceedings.
  • Date d'édition : 12/11/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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