Constant NO.sub.x control for gas turbine

Details Constant NO.sub.x control for gas turbine Constant NO.sub.x control for gas turbine

1987-03-12

1988-03-29

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 393, 60 3955, F02C 700, F02C 900

Patent

active

047335270

ABSTRACT:
A method and apparatus for automatically maintaining gas turbine NO.sub.x emissions at a substantially constant level during all ambient conditions and for no load to full load fuel flows. The required water/fuel ratio is calculated for a substantially constant level of NO.sub.x emissions at the given operating conditions and, knowing the actual fuel flow to the gas turbine, a signal is generated representing the water metering valve position necessary to inject the proper water flow into the combustor to achieve the desired water/fuel ratio.

REFERENCES:
patent: 3021673 (1962-02-01), Mock
patent: 3693347 (1972-09-01), Kydd et al.
patent: 4160362 (1979-07-01), Martens et al.
patent: 4259837 (1981-04-01), Russell e al.
patent: 4667465 (1987-05-01), Monk

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