POWER GENERATION SYSTEM, METHOD FOR POWERING POWER GENERATION SYSTEM, AND COMBUSTOR

摘要

The present invention resolves trouble caused by a difference in the temperature of different types of fuel gas. A power generation system (10) for using exhaust fuel gas (L3) emitted from an SOFC (13) as the fuel for the combustor of a gas turbine (11), and using some of the compressed air (A2) compressed by the compressor (20) of the gas turbine (11) to power the SOFC (13), wherein the gas turbine (11) is equipped with: a first combustor (21A) for combusting fuel gas (L1) which is of a different type than exhaust fuel gas (L3); a first turbine (22A) which is powered by the combusted gas (G1) supplied by the first combustor (21A); a second combustor (21B) for combusting the exhaust fuel gas (L3); and a second turbine (22B) which is axially connected to the first turbine (22A) and powered by combusted gas (G2) supplied by the second combustor (21B).