Operating a turbine at baseload on cold fuel with hot fuel combustion hardware

A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. A designated fuel split for avoiding combustion dynamics is scheduled (155) when a temperature...

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Bibliographische Detailangaben
Hauptverfasser:	FULLER, JASON D, FLAMAND, LUIS M, FREDERICK, GARTH C, MATERS, JOHN C, MORGAN, DOUGLAS C
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. A designated fuel split for avoiding combustion dynamics is scheduled (155) when a temperature for a gas fuel is below a designated value. Interlocks preventing mode transitions with cold fuel are disabled (130, 135). A determination (160) is made whether a modified wobbe index for the gas fuel is below an emissions compliant value. An alarm is activated (165) if the modified wobbe index is below the emissions compliant value to notify the operator of a potential emissions shift.