Method and apparatus for operating a gas and steam turbine plant

Details Method and apparatus for operating a gas and steam turbine plant Method and apparatus for operating a gas and steam turbine plant

1996-09-17

1998-05-26

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3912, 60 39182, F02C 328, F02C 618

Patent

active

057550891

ABSTRACT:
A method for operating a gas and steam turbine plant includes utilizing heat contained in an expanded working medium from a gas turbine to generate steam for a steam turbine connected into a water/steam circuit. The working medium for the gas turbine is generated by combustion of a fuel along with a supply of compressed air. In order to increase efficiency of the plant, the generated steam, before being introduced into the steam turbine, is superheated through the use of heat occurring during hydrogen/oxygen combustion. The plant includes a waste-heat steam generator which is located downstream of the gas turbine on the exhaust-gas side and in which a number of heating surfaces connected into the water/steam circuit of the steam turbine are disposed. A hydrogen/oxygen burner is connected into the water/steam circuit between the waste-heat steam generator and the steam turbine.

REFERENCES:
patent: 4148185 (1979-04-01), Somers
patent: 5331806 (1994-07-01), Warkentin
patent: 5644911 (1997-07-01), Huber
"Prompt reserve steam generator supports the electric circuit", BWK, vol. 41 (Jun. 1989), No. 6, p. 287.
"Hydrogen/Oxygen Steam Generator in power technology", (Sternfeld), VDI Reports, No. 602, 1987, pp. 231-247.

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