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MEASURING THE CONCENTRATION OF A FLOWING OIL-REFRIGERANT MIXTURE WITH A VIBRATING U-TUBE DENSIMETER.

Author(s) : BAUSTIAN J. J., PATE M. B., BERGLES A. E.

Summary

A COMMERCIALLY AVAILABLE VIBRATING U-TUBE DENSIMETER HAS BEEN EVALUATED AS A SENSOR FOR MEASURING THE CONCENTRATION OF OIL IN THE LIQUID LINE OF A REFRIGERATION SYSTEM. CALIBRATION AND PERFORMANCE TESTS WERE CONDUCTED UNDER SIMULATED LIQUID-LINE CONDITIONS FOR R12-NAPHTHENIC OIL, R22-NAPHTHENIC OIL AND R502-ALKYLBENZENE OIL MIXTURES IN CONCENTRATIONS OF 0 TO 30 WEIGHT-PERCENT. TEST TEMPERATURES RANGED FROM 294 TO 319 K (21 TO 46 DEG C) AT PRESSURE DROPS CORRESPONDING TO APPROXIMATELY 3 K (3 DEG C) SUBCOOLING THROUGH THE DENSIMETER. STATISTICAL ANALYSIS OF THE DATA SHOWED THAT THE DENSIMETER CAN BE USED TO MEASURE THE FLOWING OIL CONCENTRATION WITH AN UNCERTAINTY FROM MORE OR LESS 1 TO 2%.

Details

  • Original title: MEASURING THE CONCENTRATION OF A FLOWING OIL-REFRIGERANT MIXTURE WITH A VIBRATING U-TUBE DENSIMETER.
  • Record ID : 1989-2170
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 2; 571-587; 12 fig.; 1 tabl.; 12 ref.; append.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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