Ansaldo Energia S.p.a.

Giacomo Pollarolo

Federico Bonzani

Carlo Piana

Vittorio Corona

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

A system for damping thermo-acoustic instability in a combustor device for a gas turbine, the combustor device including at least one combustion chamber, in particular of an annular type, and at least one burner associated to the combustion chamber and mounted in a position corresponding to a front portion set upstream of the combustion chamber; the damping system including at least one Helmholtz resonator including a casing defining inside it a pre-set volume and a neck for hydraulic connection between the pre-set volume and the combustion chamber, the neck being connected to one side of the combustion chamber at a distance from the front upstream portion thereof provided with the at least one burner. The casing of the resonator includes structure which varies the pre-set volume within a pre-set range and structure which delivers a cooling fluid.

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Genoa, Italy

Giacomo Pollarolo