Combustion control for producing low NO.sub.x emissions through

Details Combustion control for producing low NO.sub.x emissions through Combustion control for producing low NO.sub.x emissions through

1993-04-19

1994-04-19

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

73116, F02P 510, F02D 4114, G01M 1500, G01L 2322

Patent

active

053036840

ABSTRACT:
Combustion in a gas turbine is controlled through use of flame spectroscopy in order to achieve low NO.sub.x emissions in the exhaust. By monitoring the combustion flame in the turbine to determine intensity of non-infrared spectral lines, and dynamically adjusting the fuel/air ratio of the fuel mixture such that this intensity remains below a predetermined level associated with a desired low level of NO.sub.x emissions, the engine produces significantly reduced NO.sub.x emissions in its exhaust but at a sufficiently high combustion flame temperature to avoid any undue risk of flame-out, thereby assuring stable, safe and reliable operation.

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"Rosemount Optical Light-Off Detector for Stationary Turbine Engines", Rosemount Inc. Catalog, Rosemount Inc., Aerospace Division, 1256 Trapp Road, Eagan, Minn. 55121, Feb. 1992.
F. Frain, "Research into a Spectral Flame Analyzer Phase 1-Final Report for the Period Apr. 21, 1983-Jun. 30, 1985", Work Performed under United States Department of Energy Contract DE-AC07-831D12463; Jun. 1, 1985.

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