Ansaldo Energia S.p.a.

Federico Bonzani

Luca Bozzi

Giacomo Pollarolo

Marco Mantero

Paolo Pesce

Paolo Gobbo

Stefano Cacciacarne

Fabrizio Ferrari

Giulio Mori

Domenico Zito

Luigi Minervini

Roberta Gatti

Marco Oliveri

Lorena Della Fiore

Carlo Piana

Gian Franco Piana

Vittorio Corona

A control method for cooling a turbine stage of a gas turbine, whereby cooling air is bled from combustion air flowing in a compressor of the gas turbine, and is fed to a cooling circuit staring from a stator of the turbine stage; and cooling airflow is adjusted as a function of the pressure at the inlet of the cooling circuit, and as a function of the combustion air pressure at the exhaust of the compressor; more specifically, there is a feedback control setting a setpoint, which is predetermined as a function of the power output of the turbine to reduce contaminating emissions.

Control method for cooling a turbine stage in a gas turbine

A gas turbine equipped with a burner, which has an axial swirler for generating turbulence in a flow of comburent air, a secondary supply line of fuel gas, a main supply line of fuel gas arranged concentrically around the secondary line, and a pilot line of fuel gas. Accordingly, the burner is ignited by firing a spark and feeding, towards the spark, comburent air and fuel gas which is synthesis gas.

Gas turbine equipped with a gas burner and axial swirler for the burner

A turbine burner () comprising a secondary feed unit for the supply of a backup mixture and a primary feed unit intended for the supply of a primary mixture comprising lean gas, comprising a primary mixture channel (). The primary mixture channel () has an annular wall () having a truncated cone-shaped end portion () capable of conveying the primary mixture directly to the combustion zone () facing the axial swirler (), achieving efficient combustion even for primary mixtures comprising gases with a low calorific value.

Gas turbine burner

Growing community of inventors

Genoa, Italy

Federico Bonzani