Wobbe control and enhanced operability through in-line fuel reforming
AssigneeGeneral Electric Company
InventorsWilly S. ZIMINSKY, Gilbert O. Kraemer, Girard A. SIMONS, Mark A. HADLEY
Life of this patent
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Abstract
A method of regulating the Wobbe number of a multi-composition gas fuel supplied to one or more combustors of a gas turbine includes: (a) providing a control system for regulating fuel and air flow to the one or more combustors; and (b) reforming a fraction of the gas fuel upstream of the one or more combustors to form hydrogen and carbon monoxide to be supplied to the one or more combustors with a remaining fraction of the fuel; wherein the fraction of fuel reformed is adjusted to maintain the Wobbe number of the fuel supplied to the one or more combustors within a predetermined range.
Claims7
A method of regulating the Wobbe number of a multi-composition gas fuel supplied to one or more combustors of a gas turbine comprising:
- (a) providing a control system for regulating fuel and air flow to said one or more combustors;
- and
- (b) reforming a fraction of the gas fuel upstream of said one or more combustors to form hydrogen and carbon monoxide to be supplied to said one or more combustors with a remaining fraction of said fuel;
- wherein the fraction of fuel reformed is adjusted to maintain the Wobbe number of the fuel supplied to said one or more combustors within a predetermined range.
A method of regulating the Wobbe number of a multi-composition gas fuel supplied to one or more combustors of a gas turbine comprising:
- (a) providing a plurality of sensors to monitor turbine operating parameters sufficient to determine a fuel Modified Wobbe Index for fuel supplied to one or more combustors of the gas turbine;
- (b) providing a control system for regulating fuel flow and fuel splits of fuels in the multi-composition gas fuel supplied to the combustor;
- and
- (c) partially oxidizing a fraction of the gas fuel upstream of said one or more combustors to form hydrogen and carbon monoxide to be supplied to said one or more combustors with a remaining fraction of said fuel;
- wherein the fraction of fuel reformed is adjusted to maintain the Wobbe number of the fuel supplied to said one or more combustors within a predetermined range.
Dependencies are inferred from the claim text.