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Refrigerant flow through flexible short-tube orifices.

Author(s) : KIM Y. C., O'NEAL D. L., PAYNE W. V., et al.

Type of article: Article

Summary

Flexible short-tube orifices were designed to decrease their diameter as the pressure differential across them increases under high outdoor temperatures. A series of tests for an R22/lubricant mixture (mass fraction of oil 1.2%) were performed with two flexible short-tube orifices to develop flow data over a range of typical air conditioner operating conditions. The tests included both single- and two-phase flow conditions at the inlet of the flexible short tube. Upstream pressures were varied from 1179 to 2144 kPa, which corresponded to saturated condensing temperatures of 29.4 to 54.4 °C. Experimental results were presented as a function of pressure, subcooling/quality, evaporating pressure, and modulus of elasticity. An empirical flow model was developed using the experimental data.

Details

  • Original title: Refrigerant flow through flexible short-tube orifices.
  • Record ID : 2003-1797
  • Languages: English
  • Source: HVAC&R Research - vol. 8 - n. 2
  • Publication date: 2002/04
  • Document available for consultation in the library of the IIR headquarters only.

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