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Exergoeconomic analysis for the design improvement of supercritical CO2 cycle in concentrated solar plant

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  • Guelpa, Elisa
  • Verda, Vittorio

Abstract

In this work, an exergoeconomic analysis is applied to the power cycle of a concentrated solar plant for its design improvement. A supercritical CO2 cycle connected with the exothermic reactor of a thermochemical storage unit is considered. The analysis is conducted with the goal of highlighting the advantages of exergoeconomic analysis while suggesting changes to both the design parameters and the system configuration. Starting from the plant configuration which guarantees the maximum efficiency, the exergoeconomic analysis is iteratively applied with the goal of reducing the unit cost of electricity. The analysis is conducted in a way that cost functions of the components can be substituted with the cost analysis of specific designs. This is a big advantage of this procedure, which is suitable for applications in which economic analysis requires a detailed knowledge of the system characteristics. The procedure is then validated comparing the results with those obtained through mathematical optimization.

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  • Guelpa, Elisa & Verda, Vittorio, 2020. "Exergoeconomic analysis for the design improvement of supercritical CO2 cycle in concentrated solar plant," Energy, Elsevier, vol. 206(C).
    • Handle: RePEc:eee:energy:v:206:y:2020:i:c:s0360544220311312
    DOI: 10.1016/j.energy.2020.118024
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    References listed on IDEAS

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    Cited by:

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    3. Zhao, Xinyu & Yang, Sheng & Liu, Zhanjun & Wang, Deqiang & Du, Zengzhi & Ren, Jingzheng, 2024. "Optimization and exergoeconomic analysis of a solar-powered ORC-VCR-CCHP system based on a ternary refrigerant selection model," Energy, Elsevier, vol. 290(C).
    4. Li, Yuzhe & Zhang, Enbo & Feng, Jiaqi & Zhang, Xu & Yue, Liangyuan & Bai, Bofeng, 2024. "Reduced-dimensional prediction method for the axial aerodynamic forces in the off-design operation of near-critical CO2 centrifugal compressors," Energy, Elsevier, vol. 302(C).

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