The modeling of a centrifugal compressor system with exhaust and plenum piping acoustics is presented in this paper. For an experimental centrifugal compressor test rig with modular inlet and exhaust piping, a mathematical model of the system dynamics is derived based on the Greitzer compression system model. In order to include the dynamics of the piping acoustics, a transmission line model is added to the original compressor equations and different compressor-piping configurations were tested. The resulting mathematical representations of the compression system dynamics are compared with the measured response of the experimental setup. Employing active magnetic bearings to perturb the axial impeller tip clearance of the compressor, the compression system is excited over a wide frequency range and the input-output response from the impeller tip clearance to the plenum pressure rise is analyzed. Additionally, the simulated surge oscillations are compared with the measured response in the surge condition. A good agreement is observed between the experimental and theoretical frequency responses of from the tip clearance to the output pressure, both in stable operation and during surge.
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e-mail: zl5y@virginia.edu
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October 2011
Research Papers
An Enhanced Greitzer Compressor Model Including Pipeline Dynamics and Surge
Se Young Yoon,
Se Young Yoon
Charles L. Brown Department of Electrical and Computer Engineering,
University of Virginia
, Charlottesville, VA 22904-4743
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Zongli Lin,
Zongli Lin
Charles L. Brown Department of Electrical and Computer Engineering,
e-mail: zl5y@virginia.edu
University of Virginia
, Charlottesville, VA 22904-4743
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Christopher Goyne,
Christopher Goyne
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904-4746
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Paul E. Allaire
Paul E. Allaire
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904-4746
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Se Young Yoon
Charles L. Brown Department of Electrical and Computer Engineering,
University of Virginia
, Charlottesville, VA 22904-4743
Zongli Lin
Charles L. Brown Department of Electrical and Computer Engineering,
University of Virginia
, Charlottesville, VA 22904-4743e-mail: zl5y@virginia.edu
Christopher Goyne
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904-4746
Paul E. Allaire
Department of Mechanical and Aerospace Engineering,
University of Virginia
, Charlottesville, VA 22904-4746J. Vib. Acoust. Oct 2011, 133(5): 051005 (14 pages)
Published Online: July 26, 2011
Article history
Received:
May 5, 2010
Revised:
December 24, 2010
Online:
July 26, 2011
Published:
July 26, 2011
Citation
Yoon, S. Y., Lin, Z., Goyne, C., and Allaire, P. E. (July 26, 2011). "An Enhanced Greitzer Compressor Model Including Pipeline Dynamics and Surge." ASME. J. Vib. Acoust. October 2011; 133(5): 051005. https://doi.org/10.1115/1.4003937
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