The potential of transcritical cycles based on CO2 mixtures: An exergy-based analysis

Pablo Rodríguez-deArriba, Francesco Crespi, David Sánchez, Antonio Muñoz and Tomás Sánchez

Renewable Energy, 2022, vol. 199, issue C, 1606-1628

Abstract: This paper focuses on the thermodynamic comparison between pure supercritical Carbon Dioxide and blended transcritical Carbon Dioxide power cycles by means of a thorough exergy analysis, considering exergy efficiency, exergy destruction and efficiency losses from Carnot cycle as main figures of merit. A reference power plant based on a steam Rankine cycle and representative of the state-of-the-art (SoA) of Concentrated Solar Power (CSP) plants is selected as base-case. Two different temperatures of the energy (heat) source are considered: 575 °C (SoA) and 725 °C (next generation CSP).

Keywords: CO2 cycles; CSP applications; CO2-blends; Exergy analysis (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:199:y:2022:i:c:p:1606-1628

DOI: 10.1016/j.renene.2022.09.041

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