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Proceedings Paper

On-line combuster performance optimization
Author(s): K. T. Padmanabhan; C. T. Bowman; J. David Powell
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Paper Abstract

A strategy for optimizing the performance of a combustor with respect ot volumetric heat release (increase) and pressure fluctuations (decrease) has been developed. This strategy utilized actuation and sensing techniques that simultaneoulsy control and measure volumetric heat release and pressure fluctuations. Combustor performance is explicitly defined in terms of a cost function that is a weighted combination of the mean volumetric heat release and the rms pressure fluctuation level. The control strategy performs an online minimization of the cost function by continuously seeking the optimal combination of static actuator settings and subsequently maintaining cost at a minimum when the combustor is subject to unknown inlet condition changes. The adaptivity of the strategy has been experimentally tested with unknown inlet condition changes such as flow disturbances, changes in equivalence ratio, and changes in inlet condition changes, and to be effective at finding the new optimal actuator settings that reminimize the cost function for large and small inlet condition changes.

Paper Details

Date Published: 30 May 1995
PDF: 12 pages
Proc. SPIE 2494, Sensing, Actuation, and Control in Aeropropulsion, (30 May 1995);
Show Author Affiliations
K. T. Padmanabhan, Exxon Production Research Co. (United States)
C. T. Bowman, Stanford Univ. (United States)
J. David Powell, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 2494:
Sensing, Actuation, and Control in Aeropropulsion
James D. Paduano, Editor(s)

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