| CPC F02C 6/18 (2013.01) [H02K 7/1823 (2013.01); F05D 2220/72 (2013.01)] | 20 Claims |
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1. A combined power generation system comprising:
a gas turbine combusting a fuel in a combustor to generate rotational force and discharging exhaust gas;
a vaporizer vaporizing liquefied ammonia and supplying vaporized ammonia;
an ammonia decomposer section decomposing the vaporized ammonia supplied from the vaporizer using the exhaust gas discharged from the gas turbine and generating decomposed gases;
a heat recovery steam generator (HRSG) generating steam using the exhaust gas discharged from the gas turbine;
a first exhaust gas line through which the exhaust gas discharged from the gas turbine is transferred to the HRSG;
a steam turbine generating a rotational force with the steam transferred from the HRSG;
a decomposed gas supply line through which the decomposed gases generated in the ammonia decomposer section are supplied to the combustor;
a cold heat transfer line transferring a refrigerant that is cooled down by being deprived of heat during vaporization of the liquefied ammonia in the vaporizer and supplying the cooled refrigerant to the condenser section, and
a condenser section, connected to the cold heat transfer line, condensing the steam discharged from the steam turbine using the cooled refrigerant received from the cold heat transfer line and discharging condensed water,
a refrigerant transfer line, connected to the condenser section and the vaporizer, transferring a heated refrigerant from the condenser section to the vaporizer.
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