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TECHNICAL PAPERS: Gas Turbines: Heat Transfer

Modeling and Validation of the Thermal Effects on Gas Turbine Transients

[+] Author and Article Information
Annette E. Nielsen

Hermann-Eckert-Strasse 20, D-88634 Herdwangen-Schoenach, Germanye-mail: annette.nielsen@rolls-royce.com

Christoph W. Moll

Rolls-Royce Deutschland Ltd., & CoKG, Eschenweg 15, 15827 Dahlewitz, Germanye-mail: christoph.moll@rolls-royce.com

Stephan Staudacher

Institut für Luftfahrtantriebe, University Stuttgart, Pfaffenwaldring 6, 70596 Stuttgart, Germanye-mail: staudacher@ila.uni-stuttgart.de

J. Eng. Gas Turbines Power 127(3), 564-572 (Jun 24, 2005) (9 pages) doi:10.1115/1.1850495 History: Received October 01, 2003; Revised March 01, 2004; Online June 24, 2005
Copyright © 2005 by ASME
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References

Figures

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Quasi-non-linear state space model using integrated D,G, and C matrices
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Geometry and tip clearance definition
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Predicted HPC rotor 10 displacements and FE model
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Stagewise tip clearance changes HPT rotors
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Averaged tip clearance change HPC rotors
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Secondary processes and their effects in gas turbines
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Flow of nonadiabatic cycle matching
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Simulated and measured TGT overshoot
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Simulated and measured fuel flow overshoot
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Predicted and measured surge margin change
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Predicted and measured HPT pressure ratio
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Graphical representation of a state space system using a G matrix

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