General Electric Company

Eric Motter

Willy Steve Ziminsky

Geoffrey David Myers

Robert Joseph Iasillo

David August Snider

Joseph Vincent Citeno

James Harper

Arthur James Fossum

Daniel Robert Tegel

Stephen R Watts

Methods and systems for delivering fuel in a gas turbine engine are provided. The system includes a plurality of can annular combustors that includes at least a first set of combustors of the plurality of can annular combustors and at least a second set of combustors of the plurality of can annular combustors wherein each set of combustors is supplied by a separately controllable respective fuel delivery system. The method includes supplying fuel at a first fuel schedule to the first set of combustors and supplying fuel at a second fuel schedule to the second set of combustors during a first mode of operation wherein the second fuel schedule is different than the first fuel schedule, and supplying fuel at the second fuel schedule to the first and second sets of combustors during a second mode of operation.

Methods and systems for operating gas turbine engines

Methods and systems for a dry low NOgas turbine engine system include a gas turbine engine including at least one dry low NOcombustor. The combustor includes a plurality of injection points wherein at least some of the injection points are configured to inject a fuel into the combustor at a plurality of different locations. The system includes a water source coupled to the combustor and operable to inject water into others of the plurality of injection points. The system also includes a control system that includes a sensor configured to measure an exhaust gas concentration of the turbine, a processor programmed to receive a signal indicative of the turbine exhaust gas concentration, and to automatically control the water injection using the received exhaust gas concentration signal. Such systems in use together can mitigate visible emissions from the exhaust stack.

Systems for low emission gas turbine energy generation

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Jacksonville, FL, United States of America

Eric Motter