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Flexibility improvement in thermal power units by coupling with adsorption-based compressed CO2 energy storage system: A comprehensive analysis

Author

Listed:
  • Cao, Jingchuan
  • Gao, Jianmin
  • Du, Qian
  • Li, Jinshi
  • Zhang, Tianhang
  • Gao, Hanyang
  • Dong, Heming
  • Zhang, Yu
  • Li, Ximei

Abstract

To improve power system stability, thermal power units urgently enhance the deep peaking capacity. This paper proposes to couple an adsorption-based compression CO2 energy storage system (AB-CCES) with thermal power units. Compared to energy storage systems of the same capacity, AB-CCES system more effectively regulates load fluctuations and enables high-density CO2 storage through adsorption storage. The results indicate that the maximum power output of the integrated system increases to 123.35 % and the minimum power output decreases to 19.65 %. Total coal saving reaches 10.2 tons per day. RTE, exergy efficiency, ESD and cycle efficiency of AB-CCES system are 79.40 %, 66.11 %, 5.88 kWh/m3 and 81.62 %, respectively, under design conditions with a desorption temperature of 470.24 K. The adsorption capacity of CO2 in the adsorption tower is 99.37 kg/m3, which is 54.74 times the density of CO2 (1.185 kg/m3) under the same conditions. Sensitivity analysis indicates that higher energy storage pressures and adsorption temperatures improve system performance. Release pressure should preferably be higher than the critical pressure. The economic analysis indicates that LCOE is 0.098 $/kWh and the dynamic payback period (DPP) is 5.22 years under 4-h working conditions.

Suggested Citation

  • Cao, Jingchuan & Gao, Jianmin & Du, Qian & Li, Jinshi & Zhang, Tianhang & Gao, Hanyang & Dong, Heming & Zhang, Yu & Li, Ximei, 2025. "Flexibility improvement in thermal power units by coupling with adsorption-based compressed CO2 energy storage system: A comprehensive analysis," Energy, Elsevier, vol. 334(C).
    • Handle: RePEc:eee:energy:v:334:y:2025:i:c:s0360544225032943
    DOI: 10.1016/j.energy.2025.137652
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    1. Zhang, Yuan & Shen, Xiajie & Tian, Zhen & Kan, Ankang & Yang, Chao & Gao, Wenzhong & Yang, Ke, 2025. "Comparative study of operating modes on a gaseous two-stage compressed carbon dioxide energy storage system through energy and exergy analysis based on dynamic simulation," Energy, Elsevier, vol. 316(C).
    2. He, Tianyu & Cao, Yue & Si, Fengqi & Chua, Kian Jon, 2024. "Off-design characteristics and operation strategy analysis of a compressed carbon dioxide energy storage system coupled with a combined heating and power plant," Energy, Elsevier, vol. 303(C).
    3. Shi, Xingping & He, Qing & Liu, Yixue & An, Xugang & Zhang, Qianxu & Du, Dongmei, 2024. "Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit," Energy, Elsevier, vol. 292(C).
    4. Peng, Yirui & Zhu, Ju & Wang, Jia & Zhang, Shuqi & Du, Qian & Dong, Heming & Zhang, Yu & Gao, Jianmin & Xie, Min, 2024. "Design and development of an advanced gas storage device and control method for a novel compressed CO2 energy storage system," Renewable Energy, Elsevier, vol. 237(PA).
    5. Han, Zhonghe & Xiang, Peng, 2020. "Modeling condensate throttling to improve the load change performance of cogeneration units," Energy, Elsevier, vol. 192(C).
    6. Zhang, Yufei & Zhang, Wenlong & Li, Ruixiong & Wang, Huanran & He, Xin & Li, Xiangdong & Du, Junyu & Zhang, Xuanhao, 2024. "Thermodynamic and economic analysis of a novel compressed air energy storage system coupled with solar energy and liquid piston energy storage and release," Energy, Elsevier, vol. 311(C).
    7. Luo, Xing & Wang, Jihong & Dooner, Mark & Clarke, Jonathan, 2015. "Overview of current development in electrical energy storage technologies and the application potential in power system operation," Applied Energy, Elsevier, vol. 137(C), pages 511-536.
    8. Liu, Zhan & Liu, Zihui & Xin, Xuan & Yang, Xiaohu, 2020. "Proposal and assessment of a novel carbon dioxide energy storage system with electrical thermal storage and ejector condensing cycle: Energy and exergy analysis," Applied Energy, Elsevier, vol. 269(C).
    9. Zhang, Yuan & Liang, Tianyang & Yang, Ke, 2022. "An integrated energy storage system consisting of Compressed Carbon dioxide energy storage and Organic Rankine Cycle: Exergoeconomic evaluation and multi-objective optimization," Energy, Elsevier, vol. 247(C).
    10. Sciacovelli, Adriano & Li, Yongliang & Chen, Haisheng & Wu, Yuting & Wang, Jihong & Garvey, Seamus & Ding, Yulong, 2017. "Dynamic simulation of Adiabatic Compressed Air Energy Storage (A-CAES) plant with integrated thermal storage – Link between components performance and plant performance," Applied Energy, Elsevier, vol. 185(P1), pages 16-28.
    11. Liao, Chunhui & Ertesvåg, Ivar S. & Zhao, Jianing, 2013. "Energetic and exergetic efficiencies of coal-fired CHP (combined heat and power) plants used in district heating systems of China," Energy, Elsevier, vol. 57(C), pages 671-681.
    12. He, Qing & Liu, Hui & Hao, Yinping & Liu, Yaning & Liu, Wenyi, 2018. "Thermodynamic analysis of a novel supercritical compressed carbon dioxide energy storage system through advanced exergy analysis," Renewable Energy, Elsevier, vol. 127(C), pages 835-849.
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