METHOD OF OPERATING A COMBUSTION SYSTEM WITH MAIN AND PILOT FUEL CIRCUITS

METHOD OF OPERATING A COMBUSTION SYSTEM WITH MAIN AND PILOT FUEL CIRCUITS

A system and method for operating a combustion system 100 comprising a fuel nozzle 118 defining at least one main fuel circuit 136 and at least one pilot fuel circuit is generally provided. The method includes determining an overall flow of fuel, the overall flow of fuel defining a sum total fuel th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BENJAMIN, Michael Anthony, THOMSEN, Duane Douglas, HSIAO, George Chiachun, GARDNER, Donald Lee, VISE, Steven Clayton, STICKLES, Richard Wade, BIRMAHER, Shai, COOPER, Clayton Stuart
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:A system and method for operating a combustion system 100 comprising a fuel nozzle 118 defining at least one main fuel circuit 136 and at least one pilot fuel circuit is generally provided. The method includes determining an overall flow of fuel, the overall flow of fuel defining a sum total fuel through the main fuel circuit 136 and the pilot fuel circuit; determining a plurality of ranges of ratios of main fuel flow through the main fuel circuit 136 versus pilot fuel flow through the pilot circuit from the overall flow of fuel, wherein each range of ratios is based on a combustion criterion different from one another; determining a resultant range of ratios of main fuel flow versus pilot fuel flow based on a hierarchy of combustion criteria, wherein the hierarchy of combustion criteria provides a priority ranking of the combustion criterion; and flowing the overall flow of fuel to the main fuel circuit 136 and the pilot fuel circuit based on the resultant range of ratios of main fuel flow versus pilot fuel flow.