This presentation covers basics of different types of compressor, selection chart , basic terminology, performance curves , over view about associated system.

1. Basics of Different Types
of Compressors
Mahendra Prabhu SUBRAMANI
Rotating Equipment Engineer – TechnipFMC

2. Table of contents
1. Introduction to Compressors
2. Types of Compressor and selection chart
3. Terminologies, Performance curve used in Centrifugal Compressor
4. Centrifugal Compressor Types, Components and Driver types
5. Reciprocating Compressor
6. Screw Compressor
7. Special type of compressors and Site photos
8. Codes and Standards used for Compressor design

3. 1. Introduction to Compressor
3

4. Introduction to Compressor
• Compressor is a device used for pumping compressible fluid (i.e – Air,
Gas & Steam)
• The difference between the compressor and blower is if Pressure rise
is above 0.35 bar is compressor and below is blower
• The compressor are classified based on following parameter
a) Principle of Operation
b) Construction type
c) Staging
d) Service duty
e) Lubricated / Non lubricated

5. 2. Types of Compressors and
Selection Chart
5

6. Types of Compressor

7. Selection Chart

8. Cont.

9. Applications of Different
Compressor

10. 3. Terminologies, Performance
curve used in Centrifugal
Compressor
10

11. Performance Curve

12. Terminalogies
• Normal m3/h
• Actual m3/h
• Surge point
• Choke
• Pressure ratio: Ratio of absolute discharge pressure /
Absolute inlet pressure
• NTP conditions (Nm3/hr at sea level 1.033 kg/cm2 A, 273
K, 0% r.h)
• STP conditions (Sm3/hr at sea level 1.033 kg/cm2 A, 288
K, 0% r.h)

13. Difference between Normal and Actual flow rate

14. 4. Centrifugal Compressor Types
Components and drive systems
14

15. Different types of Centrifugal Compressor
Integral Gear
Radial Split Multistage
Pipeline Booster CompressorAxially Split Compresor

16. CENTRIFUGAL COMPRESSOR TRAIN

17. CENTRIFUGAL COMPRESSOR CROSS SECTION

18. Drivers of Centrifugal
Compressor
• Electric motor
• Steam Turbine
• Gas Turbine

19. Centrifugal Compressor Package

20. Gear units

21. Lube oil system

22. Magnetic Bearings

23. Seal Gas Panel

24. 5. Reciprocating Compressor
24

25. Reciprocating Compressor
• Reciprocating compressor is
a positive-displacement
compressor that uses piston
driven by a crankshaft to
deliver gases at high
pressure
• The take gas enters the
suction manifold, then flows
into compression cylinder
where it gets compressed by
a piston driven in a
reciprocating motion via a
crankshaft, and is then
discharged through the
discharge valve

26. Cont.

27. Cont.

28. Cont.

29. Reciprocating compressor Package

30. 6. Screw Compressor
30

31. Screw Compressor

32. Cont.

33. Oil Injection System

34. 7. Special Types of Compressor
and Site photos
34

35. Liquid Ring Compressor

36. Scroll Compressor

37. Diaphragm Compressor

38. Axial Compressor

39. Site Photos of Process
Compressor Train

40. Cont…

41. Cont.…

42. Cont.

43. Cont.

44. 8. Codes and Standards used for
Compressor design
44

45. Codes and Standards used
Compressor design
• API 617 – Centrifugal Compressors
• API 618 – Reciprocating Compressors
• API 619 – Rotary type positive displacement compressors
• API 672 – Packaged Integrally geared Centrifugal compressors
• API 681 – Liquid Ring Vacuum Pumps and Compressors
• API 613 – Special Purpose Gear box
• API 614 – Lube oil system
• API 617 – N2 Buffer gas system
• API 670 – Machine Protection system