Method for operating a fluid injection gas turbine engine

Details Method for operating a fluid injection gas turbine engine Method for operating a fluid injection gas turbine engine

1985-10-21

1987-04-28

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3953, F02C 700, F02C 916

Patent

active

046603760

ABSTRACT:
A gas turbine including at least a compressor, a combustor, and a turbine is constructed to operate at a preferred thermal efficiency in predetermined compressor and turbine flow pressure ratios. A fluid, such as steam, for example produced by waste heat and pressurized as water, and characterized as having a higher specific heat at constant pressure than effluent from the combustor is introduced into such effluent to provide a turbine operating medium of improved potential to transfer energy downstream of the combustor. Such injection provides effective variable geometry to the system. This injection system maintains such pressure flow ratios substantially independent of engine power output.

REFERENCES:
patent: 2952974 (1960-09-01), Wright
patent: 3280555 (1966-10-01), Charpentier et al.
patent: 3693347 (1972-09-01), Kydd et al.
patent: 4297841 (1981-11-01), Cheng

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