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Document IIF

Mesures des concentrations en frigorigène/lubrifiant de mélanges à l'aide de l'indice de réfraction.

Concentration measurement of refrigerant/refrigeration oil mixture by refractive index.

Auteurs : FUKUTA M., YANAGISAWA T., MIYAMURA S., et al.

Type d'article : Article, Article de la RIF

Résumé

Refrigeration oil having good miscibility with refrigerant is generally used in refrigeration units. Precise measurement of the mixing ratio of refrigerant to refrigeration oil is required for a sufficient understanding of the refrigeration cycle. In this article, the refractive index is chosen as a property which indicates the mixing concentration of the refrigerant/oil mixture. A laser displacement sensor was used to detect a modification in the optical path which changes according to the refractive index of the test medium. The refractive indices of pure refrigerant, pure refrigeration oil and refrigerant/refrigeration oil mixture are measured with several combination of refrigerant/oil. It was found that the differences in the refractive indices of the refrigerant and the oil are sufficient for the measurement of the mixing concentration of refrigerant/oil mixture, and that the refractive index of the refrigerant/oil mixture changes almost linearly according to the mixing concentration. These data will be utilized for development of an in situ sensor in refrigerant compressors.

Documents disponibles

Format PDF

Pages : 346-352

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 : Concentration measurement of refrigerant/refrigeration oil mixture by refractive index.
  • Identifiant de la fiche : 2004-1573
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 27 - n. 4
  • Date d'édition : 06/2004

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