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Systems and methods for detection of blowout precursors in combustors

United States Patent

August 15, 2006
View the Complete Patent at the US Patent & Trademark Office
The present invention comprises systems and methods for detecting flame blowout precursors in combustors. The blowout precursor detection system comprises a combustor, a pressure measuring device, and blowout precursor detection unit. A combustion controller may also be used to control combustor parameters. The methods of the present invention comprise receiving pressure data measured by an acoustic pressure measuring device, performing one or a combination of spectral analysis, statistical analysis, and wavelet analysis on received pressure data, and determining the existence of a blowout precursor based on such analyses. The spectral analysis, statistical analysis, and wavelet analysis further comprise their respective sub-methods to determine the existence of blowout precursors.
Lieuwen; Tim C. (Atlanta, GA), Nair; Suraj (Atlanta, GA)
Georgia Tech Reasearch Corporation (Atlanta, GA)
10/ 603,039
June 24, 2003
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract No. E16-U68 awarded by the U.S. Department of Energy.