Method for controlling combustion device dynamics

Details Method for controlling combustion device dynamics Method for controlling combustion device dynamics

2005-09-30

2009-08-04

Casaregola, Louis J (Department: 3741)

Power plants

Combustion products used as motive fluid

Process

C060S039281, C431S001000

Reexamination Certificate

active

07568349

ABSTRACT:
A method for controlling a combustion dynamics level within a combustion device includes defining a high dynamics operating state at a first fuel split ratio. The first fuel split ratio is a ratio of an amount of fuel supplied to the combustion device through a first fuel line to a total amount of fuel supplied to the combustion device. A low dynamics operating state is defined at a second fuel split ratio different from the first fuel split ratio. The second fuel split ratio is a second ratio of an amount of fuel supplied to the combustion device through the first fuel line to a total amount of fuel supplied to the combustion device. The combustion dynamics level within the combustion device is controlled by periodically switching between the first fuel split ratio and the second fuel split ratio.

REFERENCES:
patent: 5349811 (1994-09-01), Stickler et al.
patent: 6059560 (2000-05-01), Richards et al.
patent: 6202401 (2001-03-01), Seume et al.
patent: 6595002 (2003-07-01), Weisenstein
patent: 6786049 (2004-09-01), Parsons et al.

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