Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Patent
1998-11-16
2000-04-11
Nguyen, Hoang
Power plants
Motive fluid energized by externally applied heat
Power system involving change of state
60679, F01K 1300
Patent
active
06047548&
ABSTRACT:
A gas and steam turbine plant includes a waste-heat steam generator disposed downstream of a gas turbine on the exhaust-gas side. The waste-heat steam generator has heating surfaces connected into a water-steam circuit of a steam turbine having a high-pressure part, a medium-pressure part and a low-pressure part. In order to achieve as high a plant efficiency as possible, a heat exchanger disposed outside the waste-heat steam generator is connected between the high-pressure part and the medium-pressure part on the primary side and between the medium-pressure part and the low-pressure part of the steam turbine on the secondary side. In a corresponding method for operating such a plant, low-pressure steam flowing to the steam turbine is heated by indirect heat exchange with medium-pressure steam flowing out of the steam turbine.
REFERENCES:
patent: 3016712 (1962-01-01), Taylor
patent: 4598551 (1986-07-01), Dimitroff, Jr. et al.
patent: 5442919 (1995-08-01), Wilhelm
patent: 5570579 (1996-11-01), Larjola
Bruckner Hermann
Schmid Erich
Greenberg Laurence A.
Lerner Herner L.
Nguyen Hoang
Siemens Aktiengesellschaft
Stemer Werner H.
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