Thermodynamic of a novel solar heat storage compressed carbon dioxide energy storage system

Fu, Hailun; He, Qiang; Song, Jintao; Hao, Yinping

doi:10.1016/j.enconman.2021.114757

Cited by 41 publications

(2 citation statements)

References 16 publications

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“…Liu et al [7] conducted a comprehensive study on a transcritical CCES system using conventional and advanced exergy analyses. Fu et al [8] also proposed a comparative research between supercritical CCES system and transcritical CCES system which both coupled with solar heat storage.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of a compressed carbon dioxide energy storage system with a big flexible holder

Xuewen¹,

Yan²,

Ding³

et al. 2023

Preprint

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The utilization of energy storage technology is beneficial to improve renewable energy penetration. A novel compressed carbon dioxide energy storage system is proposed in this paper. A flexible gas holder is applied to store low pressure carbon dioxide in gaseous state. Detailed mathematic model of the novel compressed carbon dioxide energy storage system is established. To investigate the influence of key parameters on system performance, the parametric analysis is conducted. Results indicate that higher energy storage pressure has a positive effect on increasing system round trip efficiency within certain ranges. Higher isentropic compressor efficiency and turbine efficiency are beneficial to improve the system round trip efficiency. Lower energy storage pressure and higher isentropic efficiency of compressors are effective to reduce input power.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of a compressed carbon dioxide energy storage system with a big flexible holder

Xuewen¹,

Yan²,

Ding³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…According to a survey by the International Energy Agency, the scale of renewable energy will expand rapidly over the next few years, and be the largest source of electricity supply by early 2025 (Agency and International Energy, 2022). Since typical renewable energies, like solar and wind, have features of instability and intermittency, it brings a great challenge for its integration into the power system (Fu et al, 2021). Therefore, energy storage systems are seen as an effective way to address this challenge and an important part of the energy mix transition at this stage (Zhang et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Comparative study of thermally integrated pumped thermal energy storage based on the organic rankine cycle with different working fluid pairs

Jiang,

Zhang,

Wang

et al. 2023

Front. Energy Res.

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Thermal integrated pumped thermal energy storage (TIPTES) systems with the features of high efficiency, flexibility, and reliability, have attracted increasing attention since they can integrate low-grade heat sources to further improve the utilization and economic viability of renewable energy. In this study, a typical TIPTES system driven by waste flue gas is established, and the heat pump and organic Rankine cycle (ORC) are chosen as the charging and discharging cycle, respectively. Four organic fluids, including R600, R245fa, R601a, and R1336mzz(Z), are selected to compose sixteen different working fluid pairs for thermodynamic analysis. The effects of key parameters, like heat pump system evaporation temperature and hot storage tank temperature, on system performance were analyzed, and the single-objective optimization was conducted. A comparative study was carried out to identify the best working fluid pair according to the optimization results. Results show that the system’s power-to-power efficiency goes up as the evaporation temperature increases while an increase in the heat storage temperature decreases the exergy efficiency of the TIPTES system. Optimization results show that the R245fa + R245fa is the best working fluid pair, and in this system, the ORC evaporator has the largest exergy destruction at about 260.84 kW, which is 20.2% of the total. On the other hand, the ORC pump has the smallest exergy destruction only about 0.5%. This study also finds that the system’s power-to-power efficiency of using different working fluids in either heat pump cycles or ORC cycles is lower than that of using the same working fluid throughout the entire system.

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Feasibility assessment of a novel compressed carbon dioxide energy storage system based on 13X zeolite temperature swing adsorption: Thermodynamic and economic analysis

Zhang,

Gao

et al. 2023

Applied Energy

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Thermodynamic of a novel solar heat storage compressed carbon dioxide energy storage system

Cited by 41 publications

References 16 publications

Thermodynamic analysis of a compressed carbon dioxide energy storage system with a big flexible holder

Thermodynamic analysis of a compressed carbon dioxide energy storage system with a big flexible holder

Comparative study of thermally integrated pumped thermal energy storage based on the organic rankine cycle with different working fluid pairs

Feasibility assessment of a novel compressed carbon dioxide energy storage system based on 13X zeolite temperature swing adsorption: Thermodynamic and economic analysis

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