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Dynamic Features and their Propagation in a Centrifugal Compressor Housing with Ported Shroud
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2012 by SAE International in United States
Annotation ability available
The goal of the presented research is to study the effective operational range for a centrifugal vaneless diffuser turbocharger compressor with ported shroud typically used in diesel engines. A turbocharger bench facility was designed and tested in order to define the performances of the compressor and to better understand the occurrence of instabilities in the housing. Specific emphasis was given to the low mass flow rate region of the compressor performance characteristics where instabilities occur with fluctuations that can be significantly large in the case of surge. Static pressures and dynamic pressure fluctuations were measured at the inlet, the outlet, as well as at different positions around the volute and diffuser sections of the compressor in order to assess the development and propagation of flow instabilities.
The dynamic signature of the flow was measured along with the elaboration of the compressor mapping. Hence, data covering the entire compressor map were collected and then analyzed with specific emphasis given at low mass flow rates where unstable phenomena, including stall and surge, occur. In this study, three regimes of operation were identified from the combination of the dynamic and performance analysis that are: the stable regime, the stall (mild surge) regime and the deep surge regime. Signal features from the different sensor locations are discussed for a single speedline. Use of cross-correlations between measurements allows revealing the propagation and susceptible origin of the instabilities. In particular, pressure oscillations in surge seem to originate under the volute tongue to then propagate in the rest of the housing. Additionally, the total set of data is compared with a similar compressor without bleeding slot in order to objectively evaluate the impact of the ported shroud on the development and occurrence of instabilities.
CitationGancedo, M., Guillou, E., Gutmark, E., and Mohamed, A., "Dynamic Features and their Propagation in a Centrifugal Compressor Housing with Ported Shroud," SAE Technical Paper 2012-01-0706, 2012, https://doi.org/10.4271/2012-01-0706.
- Sorokes, J.M. “Rotating Stall - An Overview of Dresser-Rand Experience,” Dresser-Rand Olean, NY, USA
- Fink, D. A. Cumpsty, N.A. Greitzer, E. M. “Surge Dynamics in a Free-Spool Centrifugal Compressor System,” ASME Journal of. Turbomachinery 114 April 1992 321 332
- Greitzer, E. M. “The stability of pumping systems-The 1980 Freeman scholar lecture,” ASME Journal of Fluid Dynamics 103 2 1981 193 242
- Hansen, K.E. Jørgensen, P. Larsen, P.S. “Experimental and Theoretical Study of Surge in a Small Centrifugal Compressor” ASME Journal of Fluids Engineering 103 September 1981 391 395
- Abramian, M. Howard, J. H. G. “Experimental Investigation of the Steady and Unsteady Relative Flow in a Model Centrifugal Impeller Passage,” ASME Journal of.Turbomachinery 116 April 1994 269 279
- Guo, Q. Chen, H. Zhu, X-C. Du, Z-H. Zhao, Y. “Numerical Simulations of Stall Inside a Centrifugal Compressor,” Proc. IMechE Journal Power and Energy 221 2007 683 693
- Junkowski, W. M. Weiss, M.H. Price, G.R. “System With and Without Passive and Active Surge Control,” ASME Journal of.Turbomachinery 118 January 1996 29 40
- Aretakis, N. Mathioudakis, K. Kefalakis, M. Papailiou, K. “Turbocharger Unstable Operation Diagnosis Using Vibroacoustic Measurements,” ASME Journal of.Engineering for Gas Turbines and Power 126 October 2004 840 847
- Andersen, J. Lindström, F. Westin, F. “Surge Definitions for Radial Compressors in Automotive Turbochargers,” SAE Int. J. Engines 1 1 218 231 2009 10.4271/2008-01-0296
- Gravdahl, J.T. Egeland, O. “Compressor surge control using a close-coupled valve and backstepping” Proceeding of the American Control Conference AACC Albuquerque, NM June 1997
- Bartolini, G. Muntoni, A. Pisano, A. Usai, E. “Compressor Surge Active Control via Throttle and CCV Actuators. A Second-Order Sliding-Mode Approach,” Variable Structure Systems IEEE June 2008
- Pinsley, J. E. Guenette, G. R. Epstein, A. H. Greitzer, E. M. “Active Stabilization of Centrifugal Compressor Surge,” ASME Journal of.Turbomachinery 113 October 1991 723 732
- Gysling, D.L. Dugundji, J. Greitzer, E.M. Epstein, A.H. “Dynamic Control of Centrifugal Compressor Surge Using Tailored Structure ASME Journal Turbomachinery 113 October 1991 710 722
- Amann, C. A. Nordenson, G. E. Skellenger, G. D. 1975 “Casing Modification for Increasing the Surge Margin of a Centrifugal Compressor in an Automotive Turbine Engine” ASME Journal of Engineering for Power 97 329 336
- Ushida, H. Iwakiri, Y. “Numerical Fluid Analysis of a Variable Geometry Compressor for Use in a turbocharger,” R&D Review of Toyota CRDL 41 3 2006 15 21
- Yamaguchi, S. Yamaguchi, H. Goto, S. Nakao, H. Nakamura, F. “The development of effective casing treatment for turbocharger compressors,” Turbochargers and turbocharging, IMechE 2002