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Compressor ratings: what do they mean?

Author(s) : COLE R. A., COLE J. R.

Type of article: Article

Summary

The authors refer to the accepted method of catalogue rating for refrigerant compressors, whereby the quantity pumped is listed as an effective refrigerating duty at given pressures, usually referred to as saturation temperature equivalents for the specified refrigerant, also given degrees of suction superheat and condensate subcooling at entry to the expansion valve. No standards specify the exact points at which the pressure readings are taken, and variations from the quoted superheating and subcooling may be published in different ways, if at all. It is possible that as much as 10% difference in capacity may occur under actual plant conditions from the published capacity. The authors give examples relating to ammonia compressors. D.W.H.

Details

  • Original title: Compressor ratings: what do they mean?
  • Record ID : 1993-3288
  • Languages: English
  • Source: Heat. Pip. Air Cond. - vol. 65 - n. 2
  • Publication date: 1993/02

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