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Oil concentration in liquid refrigerants: in situ measurement.

Author(s) : ANDRADE E. Navarro de, SKOWRON E., GOLDSCHMIDT V. W., GROLL E. A.

Type of article: Article, IJR article

Summary

The concentration of oil in refrigerants (while in liquid state) can be measured with an acoustic velocity sensor. The transit time for an acoustic signal can be related to the oil concentration and temperature of the liquid mixture. The performance of the sensor is dependent on the properties of the oil and refrigerant, and their miscibility. In general, a thorough calibration becomes necessary. It is shown in this paper that the concentrations less than 10%, an approximation can be made for the estimate of concentration hence eliminating the need for an elaborate calibration procedure.

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Pages: 499-508

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Details

  • Original title: Oil concentration in liquid refrigerants: in situ measurement.
  • Record ID : 2000-0048
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 22 - n. 6
  • Publication date: 1999/09

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