Pilot nozzle steam injection for reduced NO.sub.x emissions, and

Details Pilot nozzle steam injection for reduced NO.sub.x emissions, and Pilot nozzle steam injection for reduced NO.sub.x emissions, and

1997-07-14

1999-11-23

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 393, 60 3955, F02C 330

Patent

active

059878754

ABSTRACT:
A combustion system has a diffusion flame pilot assembly and a steam delivery assembly. The diffusion flame pilot assembly has a fuel line with a downstream end terminating at a pilot nozzle. The steam delivery assembly has a steam line terminating at a steam outlet proximate to said fuel line and upstream of said pilot nozzle for directing steam to the pilot nozzle. An aspect of the invention has a steam throttle valve for adjusting the steam flow to the pilot nozzle based on the combustion system's NO.sub.X emissions and/or characteristics of said pilot fuel stream.

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