Development of a twin screw expressor as a throttle valve replacement for water-cooled chillers.

Summary

Power is recovered from the two-phase expansion process and used directly to recompress a portion of the vapour formed during the expansion. Both the expansion and recompression processes are carried out in a twin screw machine with only one pair of rotors. These rotate, without the need for timing gear, in a process-lubricated, totally sealed unit which the authors have called an "expressor". First test results indicate that the overall expansion-compression efficiency of the expressor is of the order of 55%.

Details

  • Original title: Development of a twin screw expressor as a throttle valve replacement for water-cooled chillers.
  • Record ID : 2001-1804
  • Languages: English
  • Source: Proceedings of the 2000 International Compressor Engineering Conference at Purdue.
  • Publication date: 2000/07/25
  • Document available for consultation in the library of the IIR headquarters only.

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