Method and apparatus for identification of hot and cold...

Details Method and apparatus for identification of hot and cold... Method and apparatus for identification of hot and cold...

2007-05-01

2007-05-01

Casaregola, L. J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S803000

Reexamination Certificate

active

10980795

ABSTRACT:
A method for identifying combustion characteristics of a plurality combustion chambers in a gas turbine, the method including: supplying fuel to the combustion chambers at a predetermined fuel rate; sensing combustion dynamic pressure in said plurality of combustion chambers and generating dynamic pressure signals representative of the dynamic pressure in each of said combustion chambers, wherein the dynamic pressure signals provide information regarding the dynamic pressure at a plurality of frequencies; segmenting the signals into a plurality of predefined frequency bands; determining a characteristic value for each of the segmented signals, and identifying an order of combustion chambers based on the characteristic value.

REFERENCES:
patent: 6205765 (2001-03-01), Iasillo et al.
patent: 6955039 (2005-10-01), Nomura et al.
patent: 6979118 (2005-12-01), Mick et al.

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