Steam cooled gas turbine system

Details Steam cooled gas turbine system Steam cooled gas turbine system

1998-02-27

2000-07-18

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60730, 60736, F02C 618, F02C 712, F02C 7224

Patent

active

060890126

ABSTRACT:
A steam cooled gas turbine system in a combined power plant, constituted such that gas turbine blade cooling steam and combustor tail pipe cooling steam are bled from an outlet of a high pressure turbine, passed through a fuel heater for heat exchange with fuel, sprayed with water to be cooled to predetermined temperatures, and then supplied to cooling areas, whereby the cooling steam supply temperatures can be maintained at predetermined values during partial load operation as well as rated operating to achieve effective cooling.

REFERENCES:
patent: 4424668 (1984-01-01), Mukherjee
patent: 4932204 (1990-06-01), Pavel er al.
patent: 5357746 (1994-10-01), Myers et al.
patent: 5428950 (1995-07-01), Tomlinson et al.
patent: 5826430 (1998-10-01), Little
Patent Abstracts of Japan, Abstract for JP 07-004210, published Jan. 10, 1995, Noguchi Yoshiki.
Patent Abstracts of Japan--Abstract for JP 06-323162 A, published Nov. 22, 1994; Nakamura Shozo.

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