General Guidelines for Compressor Selection
Purpose
The purpose of this Practice is to provide an initial reference for engineers preparing to deal with compressor vendors, for process engineers, and for project managers.
Scope
This Practice provides overall guidelines for selecting an appropriate compressor for a specific process
General Guidelines for Compressor Selection
Table of Contents
1. Introduction ..................................2
1.1 Purpose...............................................2
1.2 Scope..................................................2
2. References....................................2
2.1 Process Industry Practices (PIP) .........2
2.2 Industry Codes and Standards.............2
2.3 Other References................................3
3. Nomenclature and Definitions ....3
4. General..........................................5
5. Types of Compressors ................6
5.1 Dynamic Compressors ......................12
5.2 Positive Displacement Compressors .16
6. Basic Principles of
Compression ..............................18
6.1 General.............................................18
6.2 Centrifugal Compressors...................19
6.3 Reciprocating Compressors...............23
7. Selection Considerations ..........25
7.1 Safety ...............................................25
7.2 Process.............................................25
7.3 Site and Location ..............................26
8. Lubrication and Seal Systems ..26
8.1 Lubrication Systems ..........................26
8.2 Seal Systems ....................................27
9. Ancillary Equipment...................29
List of Tables
1a. Summary of Typical Operating
Characteristics of Compressors
(English)...........................................7
1b. Summary of Typical Operating
Characteristics of Compressors
(Metric).............................................8
2. Advantages and Disadvantages of
Different Compressors.................... 11
List of Figures
1. Types of Compressors......................6
2a. Typical Operating Envelopes of
Compressors (English) .....................9
2b. Typical Operating Envelopes of
Compressors (Metric) ..................... 10
3. Typical Single-Stage Compressor... 13
4. Typical Multi-Stage Compressor..... 14
5. Typical Axial Compressor............... 15
6. Typical Piston-Type Reciprocating
Positive Displacement Compressor 16
7. Typical Diaphragm-Type
Reciprocating Positive Displacement
Compressor.................................... 17
8. Typical Flooded Screw-Type Rotary
Compressor.................................... 18
9. Pressure-Volume Diagram for
Compression Processes ................. 19
10. Typical Performance Map of a
Centrifugal Compressor.................. 22
11. Pressure-Volume Diagram for
Reciprocating Compressor ............. 23
12. Ancillary and Supporting Systems for
Compressor Applications................ 30
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