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Binary fuel staging scheme for improved turndown emissions in lean premixed gas turbine combustion
Binary fuel staging scheme for improved turndown emissions in lean premixed gas turbine combustion
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机译：贫液预混燃气轮机燃烧改善调节排放的二元燃料分期方案
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摘要
A method for staging premixers in a combustion system for a gas turbine having a compressor section and a turbine section. The method includes providing a plurality of burners each including premixers wherein compressed air from the compressor section is provided to the premixers. The method also includes providing a plurality of fuel circuits that deliver fuel to the premixers to provide premixed air and fuel used for combustion in the combustion system. In addition, the method includes associating premixers with each fuel circuit in accordance with a power of base two pattern. Further, the method includes activating or deactivating the premixers in stages by activating or deactivating an associated fuel circuit to deliver fuel or stop fuel delivery, respectively, to the premixers wherein a staging step size between consecutive stages is in accordance with a power of base two staging scheme.
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