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Triple-Objective Optimization of SCO 2 Brayton Cycles for Next-Generation Solar Power Tower

Author

Listed:
  • Yu Qiu

    (School of Energy Science and Engineering, Central South University, Changsha 410083, China)

  • Erqi E

    (School of Energy Science and Engineering, Central South University, Changsha 410083, China)

  • Qing Li

    (School of Energy Science and Engineering, Central South University, Changsha 410083, China)

Abstract

In this paper, the SCO 2 Brayton regenerative and recompression cycles are studied and optimized for a next-generation solar power tower under a maximum cycle temperature of over 700 °C. First, a steady-state thermodynamic model is developed and validated, and the impacts of different operating parameters on three critical performance indexes, including the cycle thermal efficiency, specific work, and heat storage temperature difference, are analyzed. The results reveal that these performance indexes are influenced by the operating pressures, the SCO 2 split ratio, and the effectiveness of the regenerators in complex ways. Subsequently, considering the three performance indexes as the optimization objectives, a triple-objective optimization is carried out to determine the optimal operating variables with the aim of obtaining Pareto solutions for both cycles. The optimization indicates that the regenerative cycle can achieve the maximum heat storage temperature difference and the maximum specific work of 396.4 °C and 180.6 kW·kg −1 , respectively, while the recompression cycle can reach the maximum thermal efficiency of 55.95%. Moreover, the optimized maximum and minimum pressure values of both cycles are found to be around 30 MPa and 8.2 MPa, respectively. Additionally, the distributions of the optimized values of the regenerator effectiveness and the SCO 2 split ratio show different influences on the performance of the cycles. Therefore, different cycles with different optimized variables should be considered to achieve specific cycle performance. When considering thermal efficiency as the most important performance index, the recompression cycle should be adopted. Meanwhile, its SCO 2 split ratio and the regenerator effectiveness should be close to 0.7 and 0.95, respectively. When considering heat storage temperature difference or specific work as the most important performance index, the regenerative cycle should be adopted. Meanwhile, its regenerator effectiveness should be close to 0.75. The results from this study will be helpful for the optimization of superior SCO 2 cycles for next-generation solar tower plants.

Suggested Citation

  • Yu Qiu & Erqi E & Qing Li, 2023. "Triple-Objective Optimization of SCO 2 Brayton Cycles for Next-Generation Solar Power Tower," Energies, MDPI, vol. 16(14), pages 1-19, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:14:p:5316-:d:1191826
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    as
    1. Wang, Jikang & Zhang, Yuanting & Zhang, Weichen & Qiu, Yu & Li, Qing, 2022. "Design and evaluation of a lab-scale tungsten receiver for ultra-high-temperature solar energy harvesting," Applied Energy, Elsevier, vol. 327(C).
    2. PraveenKumar, Seepana & Agyekum, Ephraim Bonah & Kumar, Abhinav & Velkin, Vladimir Ivanovich, 2023. "Performance evaluation with low-cost aluminum reflectors and phase change material integrated to solar PV modules using natural air convection: An experimental investigation," Energy, Elsevier, vol. 266(C).
    3. Qiu, Yu & Zhang, Yuanting & Li, Qing & Xu, Yucong & Wen, Zhe-Xi, 2020. "A novel parabolic trough receiver enhanced by integrating a transparent aerogel and wing-like mirrors," Applied Energy, Elsevier, vol. 279(C).
    4. Qiu, Yu & He, Ya-Ling & Wu, Ming & Zheng, Zhang-Jing, 2016. "A comprehensive model for optical and thermal characterization of a linear Fresnel solar reflector with a trapezoidal cavity receiver," Renewable Energy, Elsevier, vol. 97(C), pages 129-144.
    5. Yang, Jingze & Yang, Zhen & Duan, Yuanyuan, 2022. "A review on integrated design and off-design operation of solar power tower system with S–CO2 Brayton cycle," Energy, Elsevier, vol. 246(C).
    6. Crespi, Francesco & Sánchez, David & Rodríguez, José M. & Gavagnin, Giacomo, 2020. "A thermo-economic methodology to select sCO2 power cycles for CSP applications," Renewable Energy, Elsevier, vol. 147(P3), pages 2905-2912.
    7. He, Ya-Ling & Qiu, Yu & Wang, Kun & Yuan, Fan & Wang, Wen-Qi & Li, Ming-Jia & Guo, Jia-Qi, 2020. "Perspective of concentrating solar power," Energy, Elsevier, vol. 198(C).
    8. Gokul Iyer & Yang Ou & James Edmonds & Allen A. Fawcett & Nathan Hultman & James McFarland & Jay Fuhrman & Stephanie Waldhoff & Haewon McJeon, 2022. "Ratcheting of climate pledges needed to limit peak global warming," Nature Climate Change, Nature, vol. 12(12), pages 1129-1135, December.
    9. Xiao, Yang & Bao, Yanqiong & Yu, Linfeng & Zheng, Xiong & Qin, Guangzhao & Chen, Meijie & He, Maogang, 2023. "Ultra-stable carbon quantum dot nanofluids as excellent spectral beam splitters in PV/T applications," Energy, Elsevier, vol. 273(C).
    10. Wang, Kun & Li, Ming-Jia & Guo, Jia-Qi & Li, Peiwen & Liu, Zhan-Bin, 2018. "A systematic comparison of different S-CO2 Brayton cycle layouts based on multi-objective optimization for applications in solar power tower plants," Applied Energy, Elsevier, vol. 212(C), pages 109-121.
    11. Guo, Jia-Qi & Li, Ming-Jia & He, Ya-Ling & Xu, Jin-Liang, 2019. "A study of new method and comprehensive evaluation on the improved performance of solar power tower plant with the CO2-based mixture cycles," Applied Energy, Elsevier, vol. 256(C).
    12. Qiu, Yu & Li, Ming-Jia & Wang, Kun & Liu, Zhan-Bin & Xue, Xiao-Dai, 2017. "Aiming strategy optimization for uniform flux distribution in the receiver of a linear Fresnel solar reflector using a multi-objective genetic algorithm," Applied Energy, Elsevier, vol. 205(C), pages 1394-1407.
    13. Wang, Xurong & Li, Xiaoxiao & Li, Qibin & Liu, Lang & Liu, Chao, 2020. "Performance of a solar thermal power plant with direct air-cooled supercritical carbon dioxide Brayton cycle under off-design conditions," Applied Energy, Elsevier, vol. 261(C).
    14. Wang, Kun & He, Ya-Ling & Zhu, Han-Hui, 2017. "Integration between supercritical CO2 Brayton cycles and molten salt solar power towers: A review and a comprehensive comparison of different cycle layouts," Applied Energy, Elsevier, vol. 195(C), pages 819-836.
    15. Liu, Yaping & Wang, Ying & Huang, Diangui, 2019. "Supercritical CO2 Brayton cycle: A state-of-the-art review," Energy, Elsevier, vol. 189(C).
    16. Ehsan, M. Monjurul & Guan, Zhiqiang & Gurgenci, Hal & Klimenko, Alexander, 2020. "Feasibility of dry cooling in supercritical CO2 power cycle in concentrated solar power application: Review and a case study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 132(C).
    17. Alaric Christian Montenon & Rowida Meligy, 2022. "Control Strategies Applied to a Heat Transfer Loop of a Linear Fresnel Collector," Energies, MDPI, vol. 15(9), pages 1-13, May.
    18. Ye, Kai & Li, Qing & Zhang, Yuanting & Qiu, Yu & Liu, Bin, 2022. "An efficient receiver tube enhanced by a solar transparent aerogel for solar power tower," Energy, Elsevier, vol. 261(PB).
    19. Al-Sulaiman, Fahad A. & Atif, Maimoon, 2015. "Performance comparison of different supercritical carbon dioxide Brayton cycles integrated with a solar power tower," Energy, Elsevier, vol. 82(C), pages 61-71.
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