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OIL MISCIBILITY AND RECOVERY FOR R12/R22 FLOODED EVAPORATORS.

Author(s) : JAMES R. W., WELCH T. C.

Type of article: Periodical article

Summary

TESTS USING R12 AGREED WITH PREVIOUS INFORMATION IN THAT SMALL CONCENTRATIONS OF OIL IMPROVE THE HEAT TRANSFER CHARACTERISTICS AND THAT A UNIFORM CONCENTRATION IS PRESENT THROUGHOUT THE LIQUID. WITH R22 IT WAS FOUND THAT AN OIL-RICH LIQUID PHASE BEGAN TO SEPARATE FROM THE MIXTURE IN THE SURGE DRUM AT ABOUT 233K (-40 DEGC) WITH AN AVERAGE CONCENTRATION OF 0. 89%. WHEN THE FLOW RATE AND TURBULENCE WERE GREATER SEPARATION DID NOT START UNTIL THE OIL CONCENTRATION WAS INCREASED TO 1.42%. ONCE SUCH SEPARATION HAS OCCURRED IT IS DIFFICULT TO REVERSE, BUT BEFORE THERE IS NO CHANGE IN CONCENTRATION ANYWHERE IN THE LIQUID MIXTURE. A MATHEMATICAL MODEL WAS PRODUCED TO PREDICT THE PERFORMANCE. D.W.H.

Details

  • Original title: OIL MISCIBILITY AND RECOVERY FOR R12/R22 FLOODED EVAPORATORS.
  • Record ID : 1982-1517
  • Languages: English
  • Source: Inst. Refrig. - 6 p.; 7 fig.; 3 ref.; 1 append.
  • Publication date: 1982/03/04
  • Document available for consultation in the library of the IIR headquarters only.

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