Combined cycle electric power plant with coordinated steam load distribution control

Patent · Tue Sep 25 04:00:00 EDT 1979

OSTI ID:5696271

Uram, R

A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. The steam generator includes a superheater tube through which a fluid, e.g., water, is directed to be additionally heated into superheated steam by the exhaust gas turbine gases. An afterburner further heats the exhaust gas turbine gases passed to the superheater tube. The temperature of the gas turbine exhaust gases is sensed for varying the fuel flow to the afterburner by a fuel valve, whereby the temperatures of the gas turbine exhaust gases and therefore of the superheated steam, are controlled. Loading and unloading of the steam turbine is accomplished automatically in coordinated plant control as a function of steam throttle pressure.

• Assignee: Westinghouse Electric Corp.
• Patent Number(s): US 4168608
• OSTI ID: 5696271
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200102* -- Fossil-Fueled Power Plants-- Power Cycles
AFTERBURNERS
BOILERS
COMBINED-CYCLE POWER PLANTS
CONTROL SYSTEMS
ENERGY RECOVERY
EQUIPMENT
EXHAUST GASES
GAS TURBINES
GASEOUS WASTES
HEAT RECOVERY
MACHINERY
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RECOVERY
STEAM GENERATORS
STEAM TURBINES
THERMAL POWER PLANTS
TUBES
TURBINES
TURBOMACHINERY
VAPOR GENERATORS
WASTES