This paper presents transient-flow component models for the prediction of the transient response of gas turbine cycles. The application is to predict the transient response of a small solar-powered regenerative gas-turbine engine with centrifugal impellers. The component sizes are similar to those under consideration for the solar-powered Space Station, but the models can easily be generalized for other applications with axial or mixed-flow turbomachinery. New component models for the prediction of the propagation of arbitrary transients in centrifugal impellers are developed. These are coupled with component models for the heat exchangers, receiver and radiator. The models are based on transient applications of the principles of conservation of mass, energy, and momentum. System transients driven by sinusoidal and double-step inputs in receiver salt temperature are presented and discussed. The new turbomachinery models and their coupling to the heat-exchanger models simulates disturbance-propagation in the components both upstream and downstream from the point of generation. This permits the study of the physical mechanisms of generation and propagation of higher-frequency contents in the response of the cycle.
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July 2005
Technical Papers
Models for the Prediction of Transients in Closed Regenerative Gas Turbine Cycles With Centrifugal Impellers
Theodosios Korakianitis, James Watt Professor of Mechanical Engineering,,
Theodosios Korakianitis, James Watt Professor of Mechanical Engineering,
University of Glasgow, Glasgow G12 8QQ, UK
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N. E. Vlachopoulos,
N. E. Vlachopoulos
Panafon SA, Athens, Greece
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D. Zou
D. Zou
Department of Physical Therapy, Washington University, St Louis, MO 63130
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Theodosios Korakianitis, James Watt Professor of Mechanical Engineering,
University of Glasgow, Glasgow G12 8QQ, UK
N. E. Vlachopoulos
Panafon SA, Athens, Greece
D. Zou
Department of Physical Therapy, Washington University, St Louis, MO 63130
Contributed by the International Gas Turbine Institute and presented at the 39th International Gas Turbine and Aeroengine Congress and Exposition, The Hague, The Netherlands, June 13–16, 1994. Manuscript received November 1, 1993; final revision received February 1, 1994. Paper No. 94-GT-342. Associate Editor: E. M. Greitzer.
J. Eng. Gas Turbines Power. Jul 2005, 127(3): 505-513 (9 pages)
Published Online: June 24, 2005
Article history
Received:
November 1, 1993
Revised:
February 1, 1994
Online:
June 24, 2005
Citation
Korakianitis, T., Vlachopoulos, N. E., and Zou, D. (June 24, 2005). "Models for the Prediction of Transients in Closed Regenerative Gas Turbine Cycles With Centrifugal Impellers ." ASME. J. Eng. Gas Turbines Power. July 2005; 127(3): 505–513. https://doi.org/10.1115/1.1806450
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