Alstom Technology Limited

Ansaldo Energia IP UK Limited

Oliver Riccius

Adnan Eroglu

Peter Flohr

Klaus Knapp

Jaan Hellat

Richard Smith

Detlef Viereck

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

A method for operating a gas turbine (), in particular in a power plant, includes operating the gas turbine () with natural gas. In order to adapt the gas turbine operation to different natural gas qualities, a concentration of C+ is measured in the natural gas during gas turbine () operation. The gas turbine () then is operated based on the current concentration of C+.

Method for operating a gas turbine

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Birmenstorf, Switzerland

Oliver Riccius