Patent ID: 7434404

Claim:
A method for operating a combustion chamber for a gas turbine, the combustion chamber having a combustion space and a plurality of burners which are each arranged at an inlet of the combustion space ( 2 ), the burners being divided into two burner groups having the same or a different number of burners, a common oxidant supply provided for all the burners, a common first fuel supply provided for the burners belonging to the first burner group, a common second fuel supply and a common additional fuel supply provided for the burners belonging to the second burner group, the method comprising: feeding a first fuel stream to the burners belonging to the first burner group via the first fuel supply so that a lean fuel/oxidant mix is established at the burners belonging to the first burner group; feeding a second fuel stream to the burners belonging to the second burner group via the second fuel supply so that a lean fuel/oxidant mix is established at the burners belonging to the second burner group; wherein the first fuel stream for each burner is greater than the second fuel stream for each burner; and feeding an additional fuel stream to the burners belonging to the second burner group via the additional fuel supply.