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The flow pattern and condensation performance of non-azeotropic refrigerant mixtures in a horizontal annulus.

Author(s) : WANG S., ZHOU X., LIN P., DENG S.

Summary

The forced convective condensation performance of non-azeotropic refrigerant mixtures in a horizontal annulus is investigated in the paper. Smooth tube, saw-tooth finned tube (STF tube), and petal-shaped fin tube (PF tube) were used as inner tubes. R113 and R11, and their mixtures were used as working fluids. The two-phase flow patterns for condensation on PF tube were shown and the mechanism of PF tube enhancing forced convective condensation was analyzed. The experimental results showed that the petal-shaped fin induced stronger turbulence in two-phase flow and enhanced the heat and mass transfer, so that the PF tubes presented the highest condensation performance.

Details

  • Original title: The flow pattern and condensation performance of non-azeotropic refrigerant mixtures in a horizontal annulus.
  • Record ID : 1997-0101
  • Languages: English
  • Source: Proceedings of the 2nd European Thermal-Sciences (EUROTHERM) and 14th UIT National Heat Transfer Conference 1996.
  • Publication date: 1996/05/29
  • Document available for consultation in the library of the IIR headquarters only.

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