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Mapping the techno-economic potential of next-generation CSP plants running on transcritical CO2-based power cycles

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  • Rodríguez-deArriba, Pablo
  • Crespi, Francesco
  • Pace, Sara
  • Sánchez, David

Abstract

Although the thermodynamic potential of transcritical/supercritical power cycles running on CO2 mixtures for next generation Concentrated Solar Power plants has been already confirmed in literature, further investigation to assess the actual feasibility of this technology from a techno-economic standpoint is needed. In fact, large uncertainty is found when it comes to the estimation of the CapEx of the power block, and the same can be said for the solar subsystem when higher-than-SoA operating temperature are considered. In this paper, two CSP schemes, with different maximum operating temperatures, are studied: one employing molten salts and another based on solid particles.

Suggested Citation

  • Rodríguez-deArriba, Pablo & Crespi, Francesco & Pace, Sara & Sánchez, David, 2024. "Mapping the techno-economic potential of next-generation CSP plants running on transcritical CO2-based power cycles," Energy, Elsevier, vol. 310(C).
    • Handle: RePEc:eee:energy:v:310:y:2024:i:c:s0360544224029177
    DOI: 10.1016/j.energy.2024.133142
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    1. Crespi, F. & Rodríguez de Arriba, P. & Sánchez, D. & Ayub, A. & Di Marcoberardino, G. & Invernizzi, C.M. & Martínez, G.S. & Iora, P. & Di Bona, D. & Binotti, M. & Manzolini, G., 2022. "Thermal efficiency gains enabled by using CO2 mixtures in supercritical power cycles," Energy, Elsevier, vol. 238(PC).
    2. Manzolini, Giampaolo & Lucca, Gaia & Binotti, Marco & Lozza, Giovanni, 2021. "A two-step procedure for the selection of innovative high temperature heat transfer fluids in solar tower power plants," Renewable Energy, Elsevier, vol. 177(C), pages 807-822.
    3. Doninelli, M. & Morosini, E. & Di Marcoberardino, G. & Invernizzi, C.M. & Iora, P. & Riva, M. & Stringari, P. & Manzolini, G., 2024. "Experimental investigation of the CO2+SiCl4 mixture as innovative working fluid for power cycles: Bubble points and liquid density measurements," Energy, Elsevier, vol. 299(C).
    4. Rodríguez-deArriba, Pablo & Crespi, Francesco & Sánchez, David & Muñoz, Antonio & Sánchez, Tomás, 2022. "The potential of transcritical cycles based on CO2 mixtures: An exergy-based analysis," Renewable Energy, Elsevier, vol. 199(C), pages 1606-1628.
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