Share

REFRIGERANT FLOW THROUGH ORIFICES.

Author(s) : KRAKOW K. I., LIN S.

Summary

THE FLOW RATE OF REFRIGERANT THROUGH ORIFICES, USED AS THROTTLING DEVICES IN HEAT PUMPS, WAS PRIMARILY DEPENDENT ON THE UPSTREAM REFRIGERANT CONDITION. THE CHARACTERISTICS OF THE FLOW THROUGH ORIFICES WERE THUS SIMILAR TO THE CHARACTERISTICS OF FLOW THROUGH CAPILLARY TUBES. THE OBSERVED MASS FLOW RATES WERE GREATER THAN THOSE CALCULATED, ASSUMING THAT THE FLOW IS SONIC AT A PLANE OF THE ORIFICE. A THEORY HAS BEEN DEVELOPED BASED ON THE ASSUMPTION THAT WHEN THE UPSTREAM REFRIGERANT IS SUBCOOLED, THE EXIT PLANE OF THE ORIFICE IS SATURATED LIQUID, AND WHEN THE UPSTREAM REFRIGERANT IS TWO-PHASED, THE EXIT PLANE IS SONIC. THE THEORY IS CONSISTENT WITH THE THEORY FOR THE FLOW THROUGH CAPILLARY TUBES.

Details

  • Original title: REFRIGERANT FLOW THROUGH ORIFICES.
  • Record ID : 1989-1551
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 1; 484-506; 10 fig.; 5 tabl.; 16 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

Indexing