Compressor Off-Design Operation

  • Klaus H. Lüdtke


This chapter contains a methodical description and comparison of the five regulation modes: variable speed, suction throttling, adjustable inlet guide vanes, adjustable diffuser vanes and cooled bypassing. Two more topics are discussed. First, there is the test deducted dimensionless performance curve, showing work input factor versus exit flow coefficient, remaining (nearly) invariant by any transformations of speed, temperature and even gas composition. Second, there is the publication of test results in the expansion mode, i.e. the operation of a compressor stage beyond its choke point.


Mach Number Volume Flow Performance Curve Centrifugal Compressor Flow Angle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Abdel-Hamid AN, Haupt U, Rautenberg M (1987) Unsteady flow characteristics in a centrifugal compressor with vaned diffuser. ASME Paper 87-GT-142, Gas Turbine Conf. Anaheim, California, 1987; The American Society of Mechanical Engineers, New YorkGoogle Scholar
  2. API Standard 617 (1995) Centrifugal Compressors for Petroleum, Chemical, and Gas Service Industries. 6th edn, American Petroleum Institute, Washington, D.C.Google Scholar
  3. Eckert B, Schnell E (1961) Axial und Radial-Kompressoren. 2nd edn, Springer-Verlag Berlin Göttingen Heidelberg, pp 477–478, (in German)Google Scholar
  4. FVV-Forschungsvereinigung für Verbrennungskraftmaschinen (Research Association for Internal Combustion Engines) (1990) Radialverdichter-Schwingfestigkeit. Heft 456, pp 26–27, FVV, Frankfurt, Germany, (restricted, in German)Google Scholar
  5. Lüdtke K (1998) Aerodynamic stage mismatching — the key to understand multistage process centrifugal compressor behavior. VDI Berichte 1425, pp 147–156. In: Tubocompressors in industrial use. VDI Conf., Hannover, Germany, 1998; VDI-Verlag Düsseldorf, GermanyGoogle Scholar
  6. Lüdtke K (1992) The influence of adjustable inlet guide vanes on the performance of multistage industrial centrifugal compressors. ASME Paper 92-GT-17, Gas Turbine and Aero-engine Congress, Cologne, Germany, 1992; The American Society of Mechanical Engineers, New YorkGoogle Scholar
  7. Nishida H et al (1988) A study on the rotating stall of centrifugal compressors (1st Report: Effect of vaneless diffuser width on rotating stall). Trans. Japan Soc. Mech. Eng. 54 (499), pp 589–594, Nihon Kikaigakkai Ronbunshu (B edn)Google Scholar
  8. Osborne C, Japikse D (1982) Comprehensive evaluation of a small centrifugal compressor. Creare Technical Notes, TN-347, restricted; Creare Nanover, New HampshireGoogle Scholar
  9. Senoo Y, Kinoshita Y (1977) Influence of inlet flow conditions and geometries of centrifugal vaneless diffusers on critical flow angle for reverse flow. Trans. ASME, J. Fluids Eng., pp 98–103; The American Society of Mechanical Engineers, New YorkGoogle Scholar
  10. Sheets HE (1951) Nondimensional compressor performance for a range of Mach numbers and molecular weights. ASME Paper 51-SA-19, ASME Meeting, Toronto, Canada, 1951; The American Society of Mechanical Engineers, New YorkGoogle Scholar
  11. Traupel W (1966) Thermische Turbomaschinen. 1st vol, 2nd edn, Springer-Verlag, Berlin Heidelberg New York, pp 506–507 (in German)Google Scholar
  12. Van den Braembussche R, Japikse D (1996) Rotating stall in centrifugal compressors. In: Japikse D (1996) Centrifugal compressor design and performance. Chap. 5. 2, Concept ETI, Wilder, VermontGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Klaus H. Lüdtke
    • 1
  1. 1.Hedwigstrasse 10BerlinGermany

Personalised recommendations