Partager

Document IIF

Mesures en temps réel de la composition des mélanges frigorigène/huile.

Real-time measurement of mixing ratio of refrigerant/refrigeration oil mixture.

Auteurs : FUKUTA M., YANAGISAWA T., SHIMASAKI M., et al.

Type d'article : Article, Article de la RIF

Résumé

The mixing of refrigeration oil with refrigerant in a refrigeration cycle has great influence on cycle performance. A sampling method is the most general way to measure the mixing ratio of refrigerant and refrigeration oil. Since the sampling method is time-consuming and reduces the amount of refrigerant and oil in the cycle, a real-time measurement is desirable. In this study, a refractive index measurement was applied to measure the mixing ratio of refrigerant/oil mixture. A laser displacement sensor was used to detect any change in optical path which results from changes of the refractive index of refrigerant/oil mixture. For the practical application of real-time measurement of the oil circulation ratio (OCR) in the refrigeration cycle, a correlation between the refractive index and the mixing ratio was developed. In addition, the changes of the refractive index in a range of a few percentages of the oil concentration and under subcooled conditions were measured. Finally, a transient measurement of the OCR in a practically operating refrigeration cycle was carried out successfully.

Documents disponibles

Format PDF

Pages : 1058-1065

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 : Real-time measurement of mixing ratio of refrigerant/refrigeration oil mixture.
  • Identifiant de la fiche : 2006-2230
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 7
  • Date d'édition : 11/2006

Liens


Voir d'autres articles du même numéro (18)
Voir la source

Indexation