Patent ID: 6644011
Filing Date: 2003-11-11
Classification: F01K,F02C,Y02E

Abstract:
An Advanced Cheng Combined Cycle system, comprising:a gas turbine, having a turbine generating power, a compressor receiving power from the turbine, and a combustion chamber to which is input compressed air from the compressor along with fuel for producing energy to drive the turbine, the gas turbine producing a hot stream gas; a heat recovery steam generator receiving hot stream gas produced by the gas turbine and generating high-pressure steam therefrom; a steam turbine receiving and being driven by high-pressure steam generated by the heat recovery steam generator; a first conduit coupling the steam turbine and the gas turbine, said steam turbine bleeding steam through said first conduit for cooling the gas turbine; a second conduit coupling the heat recovery steam generator and the combustion chamber and gas turbine to supply steam cooling to the combustion chamber and the gas turbine; and a third conduit coupling the heat recovery steam generator and the combustion chamber and a control valve in said third conduit, throttling down high-pressure steam generated by the heat recovery steam generator to a low-pressure steam for injection back into the combustion chamber of the gas turbine.