Method for operating a furnace
AssigneeALSTOM Technology Ltd
InventorsMauricio Garay, Gianfranco L Guidati, Douglas A. Pennell, Frank Reiss
Life of this patent
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Abstract
A method for operating a furnace with a multi-burner system for generating a hot gas is provided. The furnace has a combustion chamber with a plurality of burners, each having a fuel feed. The method includes regulating a first fuel feed to at least one of the plurality of burners as a function of pressure pulsations that occur in the combustion chamber so as to achieve a steady operation of the furnace. The multi-burner system may be a gas turbine, preferably of a power plant.
Claims17
A method for operating a furnace with a multi-burner system for generating a hot gas, the furnace having a combustion chamber with a plurality of burners, the method comprising:
- feeding an individual fuel stream to each of the plurality of burners using a fuel-supply system, wherein, together, the individual fuel streams form a total fuel stream, and wherein the plurality of burners include a plurality of main burners and a plurality of secondary burners;
- regulating a first fuel feed to at least one of the plurality of burners as a function of pressure pulsations that occur in the combustion chamber so as to achieve a steady operation of the furnace;
- and
- wherein the regulating of the first fuel feed includes regulating a first main fuel feed to at least one main burner and a first secondary fuel feed to at least one secondary burner, and wherein, when a maximum pulsation value is reached, the first main fuel feed is made richer and the first secondary fuel feed is made leaner to such an extent that the total fuel stream remains constant.
Dependencies are inferred from the claim text.