Patent ID: 6615575
Filing Date: 2003-09-09
Classification: F01K,Y02E

Abstract:
A combined-cycle power plant operable under part load, comprising:a water/steam circuit including a fired boiler, a steam turbine connected to a steam output of the fired boiler, and a heater for superheating or reheating steam generated in the fired boiler to form live steam or reheater steam arranged between the fired boiler and an input of the steam turbine; a gas turbine set including a gas turbine; and a heat recovery steam generator arranged at a hot gas output of the gas turbine and connected to the water/steam circuit in such a way that steam generated in the heat recovery steam generator is admixed with the live steam or reheater steam, wherein a temperature of the steam generated in the heat recovery steam generator is regulated to a temperature different than a temperature of the live steam or reheater steam, and wherein the live steam or reheater steam is admixed with the steam generated in the heat recovery steam generator to regulate the temperature of the live steam or reheater steam.