Patent ID: 7908842
Filing Date: 2011-03-22
Classification: F01K,F02C,Y02E

Abstract:
1. A method for operating a gas turbine with sequential combustion, the gas turbine having at least one compressor, a first combustion chamber, a first turbine connected downstream of the first combustion chamber, a second combustion chamber, and a second turbine connected downstream of the second combustion chamber, the method comprising: drawing in and compressing air with the at least one compressor; feeding the compressed air to the first combustion chamber and combusting a first fuel in the first combustion chamber; feeding gas from the first turbine to the second combustion chamber and combusting a second fuel in the second combustion chamber; wherein said first and second fuels are different fuels, wherein at least one of the first combustion chamber and the second combustion chamber comprises a plurality of groups of burners, and wherein at least one of the first fuel and the second fuel is oil; and operating different burner groups inside at least one of the first and second combustion chambers with different fuels.