Alstom Technology Limited

Ansaldo Energia Switzerland Ag

Ansaldo Energia IP UK Limited

Alstom (switzerland) Ltd

General Electric Technology Gmbh

Klaus Knapp

Adnan Eroglu

Peter Flohr

Ulrich Rathmann

Madhavan Narasimhan Poyyapakkam

Eribert Benz

Stefano Bernero

Ken Yves Haffner

Peter Marx

Weiqun Geng

Oliver Riccius

Karl Reyser

Maria-Belen Gasser-Pagani

Bettina Paikert

Franklin Marie Genin

Khawar Syed

Hans Peter Knoepfel

Naresh Aluri

Torsten Wind

Xiao-Yi Zhang

Nicolas Tran

Hans Peter Knöpfel

Jürgen Hoffmann

Hans Peter KNÖPFEL

A combustion chamber including a body with a fuel supply duct for supplying a fuel into the body and a carrier air supply duct for supplying air into the body. An adjusting system adjusts the carrier air mass flow supplied into the body according to the features of the fuel.

Combustion chamber for adjusting a mixture of air and fuel flowing into the combustion chamber and a method thereof

The invention relates to a can-combustor for a can-annular combustor arrangement in a gas turbine. The can combustor includes an essentially cylindrical casing with an axially upstream front panel and an axially downstream outlet end. The can combustor further includes a number of premixed burners, extending in an upstream direction from said front panel and having a burner exit, supported by this front panel, for supplying a fuel/air mixture into a combustion zone inside the casing. Up to four premixed burners are attached to the front panel in a substantially annular array. Each burner has a conical swirl generator and a mixing tube to induce a swirl flow of said fuel/air mixture.

Can combustor for a can-annular combustor arrangement in a gas turbine

The method for adjusting a natural gas temperature for a fuel supply line of a gas turbine engine includes measuring by infrared analysis the natural gas percentage content of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), carbon dioxide (CO2), calculating the nitrogen (N2) percentage content as the complement to 100 of the measured percentage content of methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), carbon dioxide (CO2), calculating an index indicative of the natural gas energy content and adjusting the natural gas temperature on the basis of the index.

Method for adjusting a natural gas temperature for a fuel supply line of a gas turbine engine

In a method for the low-CO emissions part load operation of a gas turbine with sequential combustion, the air ratio (&#x3bb;) of the operative burners () of the second combustor () is kept below a maximum air ratio (&#x3bb;) at part load In order to reduce the maximum air ratio (&#x3bb;), a series of modifications in the operating concept of the gas turbine are carried out individually or in combination. One modification is an opening of the row of variable compressor inlet guide vanes () before engaging the second combustor (). For engaging the second combustor, the row of variable compressor inlet guide vanes () is quickly closed and fuel is introduced in a synchronized manner into the burner () of the second combustor (). A further modification is the deactivating of individual burners () at part load.

Methods of operation of a gas turbine with improved part load emissions behavior

Gas turbine with improved part load emissions behavior

A combustor arrangement for a gas turbine engine () has a split line () and a plurality of burners () arranged in an annular ring (). The burners () of the combustor on either side of the split line () have a separation distance of at least two times the average separation distance between burners () distant from the split line ().

Combustor with reduced carbon monoxide emissions

A modification method for reducing emissions from an annular shaped combustor of a gas turbine plant, having uniformly spaced circumferentially mounted premix burners (), includes the steps of: removing at least one burner (), thereby disrupting the spatial uniformity of the remaining the burners (); and modifying the combustor air distribution system so as to compensate for the increased burner pressure drop of the remaining burners, thus enabling the modified combustor to operate at a load equivalent to the unmodified combustor. Emission reduction is enabled by the increase in the gas velocity of the burner for a given load further enabled by the flame stabilizing effect of disrupting the spatial uniformity.

Method for reducing emissions from a combustor

What is described is a burner system with a premix burner ( ), in which is provided at least one vortex generator ( ), through which passes an air-containing gaseous main flow (ZL) which flows axially through the premix burner ( ) and into which gaseous and/or liquid fuel is injected, downstream of the vortex generator ( ), as a secondary flow for generating a fuel/air mixture, and with a combustion chamber ( ) which adjoins the premix burner ( ) downstream of the latter and has a combustion chamber cross section (C ) which is larger than the flow cross section (C ), delimited by the premix burner ( ), directly upstream of the combustion chamber ( ). The invention is distinguished in that, between the premix burner ( ) and the combustion chamber ( ), a flow duct ( ) is provided, delimited by side walls which create a gradual transition between the flow cross section (C ) and the combustion chamber cross section (C ), and in that upstream, within and/or downstream of the flow duct ( ) is provided at least one flow stall structure ( ), by means of which the fuel/air mixture passing through the flow duct ( ) is separated locally from the side wall of the flow duct ( ).

Burner system

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Gebenstorf, Switzerland

Klaus Knapp