Article | REF: BE9731 V1

Refrigerating machines theory - Mechanical compression machines. Single-stage cycles

Authors: Maxime DUMINIL, Jean-Pierre DOMBLIDES

Publication date: April 10, 2012, Review date: October 16, 2019

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2. Overview of the various types of refrigeration compressors

Refrigeration compressors fall into two main classes:

  • positive-displacement compressors ;

  • turbochargers.

2.1 Positive displacement compressors

The successive operations of sucking in steam at low pressure p F , compressing this steam from p F to p C , and then discharging it into the condenser are achieved by variations in the volume of the compressor's internal capacities, connected first to the low-pressure space and then, after these volumes have been reduced, to the high-pressure space. Compression ratios, p ...

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Overview of the various types of refrigeration compressors