| US 7,568,349 B2 | ||
| Method for controlling combustion device dynamics | ||
| Mark Allan Hadley, Greenville, S.C. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Sep. 30, 2005, as Appl. No. 11/241,446. | ||
| Prior Publication US 2007/0074519 A1, Apr. 05, 2007 | ||
| Int. Cl. F02C 9/26 (2006.01) | ||
| U.S. Cl. 60—776 [60/39.281; 431/1] | 9 Claims |
| 1. A method for controlling a combustion dynamics level within a combustion device, the method comprises:
defining a high dynamics operating state at a first fuel split ratio, wherein 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;
defining a low dynamics operating state at a second fuel split ratio different from the first fuel split ratio, wherein 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 the total amount of fuel supplied to the combustion device;
controlling a first amount of fuel supplied through the first fuel line and a second amount of fuel supplied through the second
fuel line that is different from the first amount of fuel at least one of the first fuel split ratio and the second fuel split
ratio; and
periodically switching between the first fuel split ratio and the second fuel split ratio, by increasing one of the first
amount of fuel and the second amount of fuel by a percentage value not greater than about 10% of the total amount of fuel
supplied to the combustion device, to control the combustion dynamics level within the combustion device.
|