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Measurements and experience on semi-hermetic CO2 compressors.

Author(s) : NEKSÅ P., DORIN F., REKSTAD H., et al.

Summary

A semi-hermetic CO2 compressor series in the range of 0.5-12.6 m3/h swept volume for high-pressure operation is under development. The series comprises single- and two-stage compressors with two cylinders running at nominal speeds of 1450 and 2900 rpm (50 Hz). This corresponds to cooling capacities in the range of 0.6-15 kW at -35 °C evaporating temperature. Different design issues in the development are being discussed, both regarding the compressor itself and also regarding application related issues, which also will affect the compressor design. Measurements of compressor efficiencies, temperatures and pressures are presented for one- and two-stage compressors in the 4-pole assembly (1450 rpm) in the early stage of development, and also some preliminary measurements for the new range of the compressor series (2900 rpm) development. The test results are already very good and new improvements are studied.

Details

  • Original title: Measurements and experience on semi-hermetic CO2 compressors.
  • Record ID : 2002-1833
  • Languages: English
  • Source: Compressors 2001: 4th international conference on compressors and coolants. The almanac of proceedings of the conference.
  • Publication date: 2001/09/26
  • Document available for consultation in the library of the IIR headquarters only.

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