GAS TURBINE ASSEMBLY COMPRISING A SEQUENTIAL COMBUSTOR AND METHOD FOR OPERATING THIS GAS TURBINE ASSEMBLY

• Main Authors: DUESING, Michael Klaus, CIANI, Andrea
• Format: Patent
• Language: English; French; German
• Published: 10.02.2021
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

A gas turbine for power plant; the gas turbine having an axis and comprising: a compressor (3,30) for compressing air; a feeding of a high reactive fuel (69); a sequential combustor (22,31,33) for mixing and combusting the compressed air with at least a high reactive fuel; at least a turbine (5,7,21) for expanding the combusted hot gas; wherein the sequential combustor comprises: a first combustor provided with at least a first burner (12,24) fed by compressed air and configured for injecting fuel in the compressed air and with at least a first combustion chamber (4,25); a second combustor provided with a plurality of second burners (26,33), fed by hot gas leaving the first combustor and configured for injecting fuel in the hot gas with at least a second combustion chamber (6,27); the gas turbine moreover comprising a by-pass circuit configured for spilling at least part of the compressed air directed to the first burners and for injecting directly this spilled air inside the sequential combustor downstream the first burners.