Gas turbine fuel supply method and arrangement

The invention provides a gas turbine fuel supply method and arrangement. It is described a method of controlling a supply of a fuel to a combustor of a gas turbine comprising a compressor upstream of the combustor, the method comprising: supplying the fuel (105) to the combustor (101); obtaining an...

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Bibliographische Detailangaben
Hauptverfasser:	DAVIES GARETH HUW, SMITH MICHAEL
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a gas turbine fuel supply method and arrangement. It is described a method of controlling a supply of a fuel to a combustor of a gas turbine comprising a compressor upstream of the combustor, the method comprising: supplying the fuel (105) to the combustor (101); obtaining an inlet air pressure (PT7) at a compressor inlet; obtaining an inlet air temperature (Tinlet) at the compressor inlet; obtaining an outlet air pressure (PT8) at a compressor outlet; estimating a heat input (HIengmodel, HIexpected) of the fuel (105) supplied to the combustor (101) based on the inlet air pressure (PT7), the inlet air temperature (Tinlet) and the outlet air pressure (PT8); comparing the estimated heat input (HIengmodel, HIexpected) with a demanded heat input (FFDEM) to derive an error signal (121); and controlling a fuel valve (103) regulating the supply of the fuel (105) to the combustor (101) based on the error signal (121).