Nozzle system and method for starting and operating gas turbines on lowBtu fuels

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United States of America Patent

PATENT NO 9771869
SERIAL NO

14154692

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fuel nozzle system for enabling a gas turbine to start and operate on low-Btu fuel includes a primary tip having primary fuel orifices and a primary fuel passage in fluid communication with the primary fuel orifices, and a fuel circuit capable of controlling flow rates of a first and second low-Btu fuel gases flowing into the fuel nozzle. The system is capable of operating at an ignition status, in which at least the first low-Btu fuel gas is fed to the primary fuel orifices and ignited to start the gas turbine, and a baseload status, in which at least the second low-Btu fuel gas is fired at baseload. The low-Btu fuel gas ignited at the ignition status has a content of the first low-Btu fuel gas higher than that of the low-Btu fuel gas fired at the baseload status. Methods for using the system are also provided.

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Patent Owner(s)

Patent OwnerAddress
GENERAL ELECTRIC COMPANY1 NEUMANN WAY EVENDALE OH 45215-6301

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cardenas,, Jr Manuel Moises Simpsonville, US 2 18
Chen, Wei Clifton Park, US 2011 24064
Haynes, Joel Meier Niskayuna, US 48 712
Leach, David Simpsonville, US 51 503
Li, Suhui Lathan, US 3 27
Lipinski, John Joseph Simpsonville, US 11 481
Wu, Wenjie Shanghai, CN 46 283
Yu, Ping Shanghai, CN 167 874
Zhang, Qingguo Niskayuna, US 12 314

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