摘要:
A combustion chamber (10) for a gas turbine engine (1) comprises: - an inner wall (22) delimiting an inner volume (V) of the combustion chamber (10), through which combustion gas flow from a burner (2) to a gas turbine (3) of the gas turbine engine (1), - a plurality of dampening cavities (30) for the dampening of thermo-acoustic vibrations in the combustion gas, each dampening cavity (30) communicating with the inner volume (V) through at least a dampening hole (40) on the inner wall (22), - at least a cooling passage (50) for a cooling medium flowing outside the inner volume (V) in thermal contact with the inner wall (22), each dampening cavity (30) comprising at least a purging hole (60) communicating with the cooling passage (50) for purging a portion of the cooling medium through the dampening cavities (30) to the inner volume (V).
摘要:
The present invention is related to a cogeneration plant (1) comprising a gas turbine engine (10), a heat recovery steam generator (17) and a division module (21) forming a semi-closed carbon dioxide cycle (22) of the cogeneration plant (1), the cogeneration plant (1) burning a mixture of fuel (40), oxygen (41) and a recirculated first flow of combustion gas (45) in a combustor (11) of the gas turbine engine (10), the heat recovery steam generator (17) arranged downstream of the gas turbine engine (10) receiving combustion gas (44) of the gas turbine engine (10) and the division module (21) arranged downstream of the heat recovery steam generator (17) dividing the combustion gas (44) into the first flow of combustion gas (45) recirculated to the gas turbine engine (10) and a second flow of combustion gas (46) for a generation (23) of carbon dioxide (42). Further, the invention is related to a method to operate a cogeneration plant (1).