Gas turbine apparatus

F - Mech Eng,Light,Heat,Weapons – 02 – C

Patent

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Details

F02C 7/08 (2006.01) F02C 3/20 (2006.01) F02C 7/22 (2006.01) F02C 9/26 (2006.01) F02C 9/40 (2006.01)

Patent

CA 2589735

A gas turbine apparatus (2) has an air compressor (20) for compressing air, a combustor (21) for combusting the compressed air, a turbine (22) rotatable by a gas discharged from the combustor (21), and a recuperator (23) for exchanging heat between the air supplied from the air compressor (20) and an exhaust gas discharged from the turbine (22). The gas turbine apparatus (2) includes a fuel supply system (24) having a first fuel supply device (50) for supplying a fuel (HG) to the combustor (21), a second fuel supply device (51) for supplying a gas (LG) having a small heating value to the combustor (21), and a switching device (56) operable to switch the first fuel supply device (50) and the second fuel supply device (51) based on a temperature of the air compressed by the air compressor (20) or the exhaust gas discharged from the turbine (22).

L'invention concerne un appareil à turbine à gaz (2) comprenant un compresseur d'air (20) permettant de comprimer de l'air, une chambre de combustion (21) permettant de brûler l'air comprimé, une turbine (22) entraînée en rotation par un gaz déchargé par la chambre de combustion (21) et un récupérateur (23) permettant d'échanger de la chaleur entre l'air fourni par le compresseur d'air (20) et des gaz d'échappement déchargés par la turbine (22). Ledit appareil à turbine à gaz (2) comprend également un système de fourniture de carburant (24) équipé d'un premier dispositif de fourniture de carburant (50) permettant de fournir un carburante (HG) à la chambre de combustion (21), d'un second dispositif de fourniture de carburant (51) permettant de fournir un gaz (LG) à faible valeur thermique à la chambre de combustion (21) et d'un dispositif de commutation (56) fonctionnant afin de commuter le premier dispositif de fourniture de carburant (50) et le second dispositif de fourniture de carburant (51) en fonction de la température de l'air comprimé par le compresseur (20) ou des gaz d'échappement déchargés par la turbine (22).

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