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TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Control Optimization of the Transient Performance of the Selective Bleed Variable Cycle Engine During Mode Transition

[+] Author and Article Information
U. T. J. Grönstedt

Department of Thermo and Fluid Dynamics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden   e-mail: thgr@tfd.chalmers.se

P. Pilidis

School of Mechanical Engineering, Cranfield University, Cranfield, Bedford MK43 0AL, UKe-mail: p.pilidis@cranfield.ac.uk

J. Eng. Gas Turbines Power 124(1), 75-81 (Feb 01, 2000) (7 pages) doi:10.1115/1.1394965 History: Received November 01, 1999; Revised February 01, 2000
Copyright © 2002 by ASME
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References

Nascimento, M. A. R., and Pilidis, P., 1991, “The Selective Bleed Variable Cycle Engine,” ASME Paper 91-GT-388.
Nascimento, M. A. R., 1992, “The Selective Bleed Variable Cycle Engine,” Ph.D. thesis, Cranfield Institute of Technology.
Ulizar, I., and Pilidis, P., 1995, “Transition Control and Performance of the Selective Bleed Variable Cycle Turbofan,” ASME Paper 95-GT-286.
Oggero, L., and Pilidis, P., 1998, “A Novel Optimization Method for Variable Cycle Engines,” ASME Paper 98-GT-142.
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Grönstedt, U. T. J., 1997, “Mission Dependent Optimization of Advanced Fighter Engines,” 13th International Symposium on Air Breathing Engines, Chattanooga, TN.
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Garrard, D., Davis, M., Jr., Hale, A., Chalk, J., and Savelle, S., 1997, “Analysis of Gas Turbine Engine Operability With the Aerodynamic Turbine Engine Code,” ISABE97-7034, Chattanooga, TN, pp. 223–232.
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Figures

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The operating modes of the selective bleed engine (4)
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Minimum specific fuel consumption (SFC) for the two modes
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Wiring diagram of the transient selective bleed variable cycle engine (VCE) model
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Constraint variables—linear scheduling of controls
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Effect of doubling shaft inertias
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Effect of change in intercomponent volume sizes
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Constraint variables—optimized scheduling of controls

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