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Chapter 6
Performance of Compressors

Excerpt

The primary requirement of any compressor selection is that the compressor must meet the operating conditions required by the system in which it is installed. To achieve this, it is first necessary to understand the performance characteristics or “behavior” of the various compressors; secondly, to develop the actual system behavior; and thirdly, to match the compressor to the system such that all operating points are covered.

Performance is therefore a critical aspect of the design of individual units and also of the station as a whole. Throughout the life of a pipeline system, units will be added, stations will be modified, and pipeline operating conditions will change. Condition monitoring relies heavily on understanding performance deterioration, which factors into important maintenance decisions. Performance thus remains a major component of compression equipment for the entire life cycle.

  • 6.1 Introduction to Compressor Performance
  • 6.2 Basic Aspects of Performance
  • 6.2.1 General
  • 6.2.2 Nomenclature
  • 6.2.3 Gas Properties
  • 6.2.4 Compression Behavior
  • 6.2.5 Head
  • 6.2.6 Efficiency
  • 6.2.7 Flow
  • 6.2.8 Power
  • 6.3 Performance of Reciprocating Compressors
  • 6.3.1 General
  • 6.3.2 Flow
  • 6.3.3 Power
  • 6.3.4 Discharge Temperature
  • 6.3.5 Performance Maps
  • 6.3.6 Piston Speed
  • 6.4 Performance of Centrifugal Compressors
  • 6.4.1 General
  • 6.4.2 Dynamic Performance Characteristics
  • 6.4.3 Selection and Sizing
  • 6.4.4 Performance Testing
  • 6.5 System Characteristics
  • 6.5.1 General
  • 6.5.2 System Curves
  • 6.5.3 Compressor Performance Adjustments
  • 6.5.4 Operating Limitations
  • 6.5.5 Compressor Performance Adjustments
  • 6.5.6 Operating Considerations
  • References
Topics: Compressors

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