Journal of Renewable and Sustainable Energy, Год журнала: 2024, Номер 16(5)

Опубликована: Сен. 1, 2024

Compressed air energy storage systems offer an effective solution to the intermittency and fluctuation challenges associated with renewable grid integration. A significant challenge in current compressed is substantial loss incurred during discharge due throttling processes, which crucial for improving round-trip efficiency. Therefore, ejector-enhanced system (EA-CAES system) proposed this study, characterized by employment of ejector reduce pressure caused process. The performance analyzed from both sensitivity analysis multi-objective optimization. Conventional exergy used estimate locations magnitudes destruction within system, advanced applied determine interactions among components identify potential improvement. results showed that, compared adiabatic efficiency increased 3.07%, total reduction process was reduced 401.9 kW. As EA-CAES avoidable most sensitive changes all parameters, followed unavoidable heat exchangers charging discharging processes influenced pressure, respectively. Finally, based on best trade-off optimization, ejector, turbine, compressor should be paid special attention improvement according analysis.

Язык: Английский