US 12,258,885 B2
Combined power generation system and operation control method thereof
Song Hun Cha, Osan (KR); Do Hoon Kim, Seoul (KR); Se Hyeok Lee, Seoul (KR); Min Soo Kim, Seoul (KR); and Hong Geun Ha, Yongin (KR)
Assigned to DOOSAN ENERBILITY CO., LTD., Changwon (KR); and SEOUL NATIONAL UNIVERSITY R&DBFOUNDATION, Seoul (KR)
Filed by DOOSAN ENERBILITY CO., LTD., Changwon (KR); and SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed on Sep. 28, 2023, as Appl. No. 18/477,427.
Claims priority of application No. 10-2022-0159702 (KR), filed on Nov. 24, 2022.
Prior Publication US 2024/0175394 A1, May 30, 2024
Int. Cl. F01K 23/10 (2006.01); F02C 7/18 (2006.01); F02C 9/18 (2006.01)
CPC F01K 23/106 (2013.01) [F02C 7/18 (2013.01); F02C 9/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A combined power generation system comprising:
a gas turbine including a compressor configured to compress air, a combustor configured to combust a mixture of the compressed air and fuel and generate combustion gases, and a turbine section configured to rotate a turbine with the combustion gases and discharge exhaust gases;
a heat recovery steam generator (HRSG) in which steam is generated by heat of the exhaust gases from the gas turbine; and
a steam turbine driven by the steam generated by the HRSG,
wherein the HRSG includes a plurality of heat exchangers, located within a flow path of the exhaust gases in which the exhaust gases flow, provided to cool the compressed air by performing heat exchange between the compressed air and the exhaust gases within the flow path of the exhaust gases.