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AssigneeAnsaldo Energia Switzerland AG
InventorsJaan HELLAT, Eribert Benz, Frank Graf, Torsten Wind, Felix Guethe, Klaus Doebbeling
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The invention relates to a method for operating a gas turbine, in which an oxygen-reduced gas and fresh air are delivered to a compressor of the gas turbine in a radially staged manner, the fresh air being delivered via an outer sector of the inlet cross section in relation to the axis of rotation of the compressor, and the oxygen-reduced gas being delivered via an inner sector of the inlet cross section in relation to the axis of rotation of the compressor. The invention relates, further, to a gas turbine power plant with a gas turbine having a compressor inlet which is followed by the flow duct of the compressor and which is divided into an inner sector and an outer sector, a feed for an oxygen-reduced gas being connected to the inner sector of the compressor inlet, and a fresh air feed being connected to the outer sector of the compressor inlet.
A method for operating a gas turbine, having a compressor with an inlet cross section, a combustion chamber and a turbine, said method comprising:
A gas turbine power plant, comprising a gas turbine with a compressor inlet, with a compressor, with a combustion chamber following the compressor, and with a turbine following the combustion chamber, wherein the compressor inlet, which the flow duct of the compressor follows, is divided into an inner sector in relation to the axis of rotation of the compressor and an outer sector in relation to the axis of rotation of the compressor, a feed for an oxygen-reduced gas, which has an oxygen concentration which is lower than the average oxygen concentration of the compressor intake flow during the operation of the gas turbine, being connected to the inner sector of the compressor inlet, and a fresh air feed being connected to the outer sector of the compressor inlet.
Dependencies are inferred from the claim text.