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An experimental analysis of adiabatic capillary tubes.

Author(s) : MELO C., FERREIRA R. T. S., BOABAID NETO C., et al.

Type of article: Article

Summary

The investigations, performed on a described facility, include the effect of capillary length, capillary diameter, refrigerant subcooling, condensing pressure and type of refrigerant on the mass flow-rates through the capillaries. The experiments were performed with CFC-12, HFC-134a and HC-600a, and at different condensing pressures and levels of subcooling under choked flow conditions. Eight different capillaries were used, and extensive data (exceeding 1000 sets) were collected. A conventional, dimensional analysis was performed to derive correlations to predict the mass flow rates for different refrigerants. The developed correlations are found to be in good agreement with the measured data.

Details

  • Original title: An experimental analysis of adiabatic capillary tubes.
  • Record ID : 2001-0051
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 19 - n. 6
  • Publication date: 1999/06

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