Artículo
Solar combined cycle with high-temperature thermochemical energy storage
Autor/es | Ortiz Domínguez, Carlos
Tejada, C. Chacartegui, Ricardo Bravo, Rubén Carro Paulete, Andrés Valverde Millán, José Manuel Valverde García, Juan Sebastián |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Energética Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo Universidad de Sevilla. Departamento de Matemática Aplicada II (ETSI) |
Fecha de publicación | 2021-08 |
Fecha de depósito | 2021-12-22 |
Publicado en |
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Resumen | The present work proposes integrating a high-temperature thermochemical energy storage cycle to boost the solar contribution in solar combined cycles. The main feature of the plant is the possibility of storing solar energy ... The present work proposes integrating a high-temperature thermochemical energy storage cycle to boost the solar contribution in solar combined cycles. The main feature of the plant is the possibility of storing solar energy at a very high temperature and releasing it on demand to drive the combined cycle in the absence of solar radiation. Based on the reversible calcination-carbonation of CaCO3/CaO, the Calcium-looping process is proposed since it allows power production above 900 °C by using cheap, non-toxic and widely available raw materials (i.e. limestone or dolomite). Based on an air-open and a CO2-closed combined cycle, two potential configurations are modelled and analysed, including designing a 360° solar field with a 200-meter tower. The novel solar combined cycle analyzed in the present work enhances the annual solar share above 50%, whilst the current state-of-the-art technology is below 15%. From actual solar irradiation data and clustering analysis, results show overall plant efficiencies over 45% (considering off-design performance) with a very high dispatchability, which justifies the interest in further developing this novel cycle. |
Identificador del proyecto | No. 727348, project SOCRATCES
CTQ2017- 83602-C2 (-1-R and -2-R) |
Cita | Ortiz, C., Tejada, C., Chacartegui, R., Bravo, R., Carro, A., Valverde, J.M. y Valverde, J. (2021). Solar combined cycle with high-temperature thermochemical energy storage. Energy Conversion and Management, 241, Article 114274. |
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