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Evaporation of liquid particles in two-phase compression process.

Author(s) : OZAKI K., KITAZAWA M., YABE A., KOBAYASHI T.

Summary

The change in water particle diameters injected into the vapour compression process, the water phase temperature and the vapour phase temperature were measured in the compression process. The experimental conditions were approx. 2 at a compression ratio under 100 kilopascals in pressure, 340-390 K in temperature range, 2-8 hertz in rotational speed. The mass ratio of injected water was small: in the order of 1% of the vapour phase mass. The temperature of water particles was clarified as being the same as the saturation temperature for the measured pressures. The temperature difference between two phases was in the order of 10 K under the test conditions. Water particles with diameters of some ten micrometers were sufficiently evaporated in the compression cycle. Injection timing difference was clearly apparent in the temperature-entropy diagram at the rotational speed of 2 hertz, even for very small injection mass ratio.

Details

  • Original title: Evaporation of liquid particles in two-phase compression process.
  • Record ID : 1995-0866
  • Languages: English
  • Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
  • Publication date: 1994/07/19
  • Document available for consultation in the library of the IIR headquarters only.

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