General Electric Technology Gmbh

Alstom Technology Limited

Ansaldo Energia Switzerland Ag

Dragan Stankovic

Eribert Benz

Stefan Rofka

Felix Guethe

Franklin Marie Genin

Frank Sander

Felix Güthe

Meike Gumprecht-Liebau

Marta De-La-Cruz-Garcia

The power plant includes a gas turbine unit adapted to feed flue gases into a diverter where they are divided into a recirculated flow and a discharged flow. The recirculated flow is fed into a mixer together with fresh air to form a mixture that is fed to the gas turbine unit. The gas turbine unit includes a combustion chamber where a fuel is burnt together with the mixture. A control unit is provided, that is supplied with information regarding the fuel C2+ and/or Hcontent and is connected to at least the diverter to drive it and online regulate the recirculated flow mass flow rate in relation to the fuel C2+ and/or Hcontent.

Power plant and method for its operation

In a method for operating a gas turbine (), a CO2-containing gas is compressed in a compressor (), the compressed gas is used to burn a fuel in at least one subsequent combustion chamber (), and the hot combustion gases are used to drive at least one turbine (). Improved control and performance can be achieved by measuring the species concentration of the gas mixture flowing through the gas turbine () at several points within the gas turbine () by a distributed plurality of species concentration sensors (-), and utilizing the measured concentration values to control the gas turbine () and/or optimize the combustion performance of the gas turbine ().

Method and apparatus for detecting combustion conditions in combustors of a sequential combustion gas turbine engine

A method is provided for determining the approach of the lean blow off (LBO) of a gas turbine engine having at least one combustion chamber into which a fuel is supplied and burnt generating a flame. The method includes determining a value indicative of the gas temperature in recirculation areas adjacent to the flame, and identifying the lean blow off (LBO) approach on the basis of this value. A device for determining the approach of the lean blow off (LBO) is also disclosed.

Method and device for ascertaining the approach of the lean blow off of a gas turbine engine

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Nussbaumen, Switzerland

Dragan Stankovic