Method of expanding a flue-gas flow in a turbine, and correspond

Details Method of expanding a flue-gas flow in a turbine, and correspond Method of expanding a flue-gas flow in a turbine, and correspond

1998-08-07

1999-11-23

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3975, F02C 712

Patent

active

059878762

ABSTRACT:
A method of expanding a hot flue-gas flow in a turbine through which a hot flue-gas passes. A structural component of the turbine is cooled by a cooling-gas flow which flows through the structural component and is fed to the hot flue-gas flow. Fuel is added in a metered fashion to the flue-gas flow in the turbine in such a way that a temperature drop in the flue-gas flow, which temperature drop results from the feeding of the cooling-gas flow without a metered addition of the fuel, is largely compensated for by the combustion of the fuel added in a metered fashion to the hot flue-gas flow. A corresponding turbine is also taught.

REFERENCES:
patent: 4197700 (1980-04-01), Jahnig
patent: 4767259 (1988-08-01), Kurosawa et al.
patent: 5003766 (1991-04-01), Paul
International Application WO 91/059046 (Ribesse), dated May 2, 1991.

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