Kim, Hyerim Kim, Tong Seop 2024-10-28T08:30:18Z 2024-10-28T08:30:18Z 2024-10-28 2024-06 https://pubs.kist.re.kr/handle/201004/150904 Combining an adiabatic compressed air energy storage (A-CAES) with a gas turbine (GT) can address any sudden changes in demand, but a comprehensive analysis of the integration effects between A-CAES and GT is needed. This study introduced a regenerative A-CAES-GT hybrid system with two thermal integrations: preheating and regeneration. These integrations resulted in an 11% increase in electric power and a 3%p increase in round-trip efficiency for the hybrid system compared to A-CAES and GT stand-alone systems. In addition, the hybrid system generated thermal power through thermal integrations, leading to a combined heat and power (CHP) round-trip efficiency higher than 60%. Various load control strategies for part load operation of the hybrid system were used and investigated. With a stable control strategy, optimal dispatch for the regenerative A-CAES-GT hybrid system was obtained, considering the environmental and energy-autonomy indices. The hybrid system revealed a 41% lower equivalent carbon dioxide emission factor (CEF) than the optimal dispatch for the A-CAES and GT stand-alone systems. Furthermore, the hybrid system showed a 4%p higher self-sufficiency under a low CEF of the grid and high demand. English AMER SOC MECHANICAL ENGINEERS Comprehensive Analysis of Adiabatic Compressed Air Energy Storage and Gas Turbine Hybrid System With Thermal Integrations Conference 10.1115/GT2024-126567 1 69th ASME Turbomachinery Technical Conference and Exposition (ASME Turbo Expo) (GT) 69th ASME Turbomachinery Technical Conference and Exposition (ASME Turbo Expo) (GT) US London, ENGLAND 2024-06-24 PROCEEDINGS OF ASME TURBO EXPO 2024: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, GT2024, VOL 5 001303796500019