Alstom Technology Limited

General Electric Technology Gmbh

Ansaldo Energia Switzerland Ag

Ghislain Singla

Thiemo Meeuwissen

Sebastian Lipari

Theodoros Ferreira-Providakis

Bruno Schuermans

Nicolas Noiray

Hanspeter Zinn

Marta De La Cruz Garcia

Piotr Siewert

Christoph Appel

Richard Smith

Ralf Jakoby

Ourania-Nektaria Margari

Joerg Rinn

Adrien Studerus

Adam Wesniuk

Eric MÜLLER

Samuel Fux

Patricia Sierra Sanchez

Nektaria-Ourania Margari

Piotr Siewart

Victor Granet

Orhan Aybay

The invention relates to a method for controlling a gas turbine group including, a first combustion chamber, a first turbine connected, a second combustion chamber, a second turbine, and a load. The method includes: measuring a temperature TAT1 at an outlet of the first turbine; determining a ratio S1R of a fuel mass flow feeding a pilot flame of the first combustion chamber to a total fuel mass flow feeding the first combustion chamber based upon the measured temperature TAT1 in accordance with a predetermined mapping table between ratio S1R and temperature TAT1; adopting the larger one between the determined ratio S1R and a predetermined booster ratio S1R to be used in the controlling fuel flow feeding the first combustion chamber of the gas turbine group. Pulsation behavior of the gas turbine group may be improved. High pulsation during fast de-loading of the gas turbine group is substantially is decreased, avoiding potential damage to the parts of the gas turbine group.

Method for controlling a gas turbine group

In a method for the low-CO emissions part load operation of a gas turbine with sequential combustion, the opening of the row of variable compressor inlet guide vanes is controlled depending on the temperatures of the operative burners of the second combustor and simultaneously the number of operative burners is kept at a minimum. This leads to low CO emissions at partial load of the gas turbine.

Gas turbine with improved part load emissions behavior

A method can protect a gas turbine engine (), which includes a compressor (), a combustor (), and a turbine (), against high dynamical process values, especially in combustor/flame pulsations. Effective protection against high dynamical process values, especially in combustor/flame pulsations, can be achieved by:

Method for protecting a gas turbine engine against high dynamical process values and gas turbine engine for conducting the method

A combustion device includes a plurality of mixing devices into which a fluid containing oxygen and a fuel are introduced and mixed to form a mixture. The combustion device also includes a combustion chamber in which the mixture formed in the mixing devices is burnt. Each mixing device has a conical body with a lance projecting into the conical body, where the fuel is injectable into the conical body. Tips of the lances of different mixing devices have different distances from corresponding open ends of the respective conical bodies.

Combustion device

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Bern, Switzerland

Ghislain Singla