Power augmentation of combustion turbines by injection of...

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

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F02C 6/16 (2006.01) F02C 7/12 (2006.01)

Patent

CA 2673721

A combustion turbine power generation system (10) includes a combustion turbine assembly (11) including a main compressor (12) for receiving ambient inlet air, a main expansion turbine (14) associated with the main compressor, a combustor (16) for receiving compressed air from the main compressor and to feed the main expansion turbine, and an electric generator (15) associated with the main expansion turbine for generating electric power. Pressure reducing structure (28) reduces pressure of compressed air from a source of compressed air to atmospheric pressure and thus to reduce a temperature of the compressed air from the source of compressed air to a temperature below ambient temperature when exhausted from the pressure reducing structure. Structure (32) is associated with the pressure reducing structure to permit mixing of the air exhausted from the pressure reducing structure and the ambient inlet air to reduce a temperature of inlet air to the main compressor and thus increase the combustion turbine assembly power.

L'invention concerne un système de production d'énergie à turbines à combustion (10) comportant un ensemble de turbines à combustion (11) comprenant un compresseur principal (12) destiné à recevoir de l'air d'entrée ambiant, une turbine d'expansion principale (14) associée au compresseur principal, un élément de combustion (16) destiné à recevoir de l'air comprimé provenant du compresseur principal et à alimenter la turbine d'expansion principale, et un générateur électrique (15) associé à la turbine d'expansion principale pour produire de l'énergie électrique. Une structure de réduction de pression (28) réduit la pression de l'air comprimé provenant d'une source d'air comprimé, à la pression atmosphérique, de manière à réduire une température de l'air comprimé provenant de la source d'air comprimé, à une température inférieure à la température ambiante, lorsque l'air quitte la structure de réduction de pression. Une structure (32) est associée à la structure de réduction de pression afin de permettre le mélange de l'air quittant la structure de réduction de pression et de l'air d'entrée ambiant afin de réduire une température de l'air d'entrée du compresseur principal, et donc augmenter la puissance de l'ensemble de turbines à combustion.

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