HYBRID POWER GENERATION SYSTEM AND METHOD USING SUPERCRITICAL CO2 CYCLE

摘要

The present invention relate to a hybrid power generation system using a supercritical CO 2 cycle, and more particularly, to a hybrid power generation system using a supercritical CO 2 cycle, which realizes optimal efficiency by applying a supercritical CO 2 cycle to a steam cycle as a bottom cycle. A hybrid power generation system using a supercritical CO 2 cycle, comprising a steam power generation unit comprising a plurality of turbines driven with steam heated by a boiler to produce electric power, for producing electric power using a supercritical CO 2 fluid, the hybrid power generation system comprising: a supercritical CO 2 power generation unit comprising an S-CO 2 heater for heating the supercritical CO 2 fluid, a turbine driven by the supercritical CO 2 fluid, a precooler for lowering a temperature of the supercritical CO 2 fluid passing through the turbine, and a main compressor for pressurizing the supercritical CO 2 fluid, so as to produce electric power, wherein the steam power generation unit and the supercritical CO 2 power generation unit share the boiler.