Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology

Thermochemical energy storage is attracting interest as a relevant alternative energy storage system in concentrating solar power plants. Efficient, low-cost, and environmentally friendly thermal energy storage is one of the main challenges for the large-scale deployment of solar energy. The reversi...

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Autores: Carro Paulete, Andrés, Chacartegui, Ricardo, Ortiz, Carlos, Becerra González, Juan Antonio
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/178330
Acceso en línea:https://hdl.handle.net/11441/178330
https://doi.org/10.1016/j.jclepro.2023.138417
Access Level:acceso abierto
Palabra clave:Thermochemical energy storage
Calcium hydroxide
Calcium oxide
CSP
Power cycle integration
Supercritical carbon dioxide
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spelling Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology Carro Paulete, Andrés Chacartegui, Ricardo Ortiz, Carlos Becerra González, Juan Antonio Thermochemical energy storage Calcium hydroxide Calcium oxide CSP Power cycle integration Supercritical carbon dioxide Thermochemical energy storage is attracting interest as a relevant alternative energy storage system in concentrating solar power plants. Efficient, low-cost, and environmentally friendly thermal energy storage is one of the main challenges for the large-scale deployment of solar energy. The reversible hydration/dehydration process of calcium oxide is one of the most promising concepts for energy storage integration at intermediate temperatures in solar plants. The efficient integration of concentrated solar power with a thermochemical energy storage system based on the calcium hydroxide concept, individually or integrated into a hybrid system with sensible heat storage, can be a feasible solution for long-term energy storage. Efficient energy recovery and subsequent power production are crucial. This work presents a novel analysis of the indirect integration of different power cycle configurations to optimise the roundtrip efficiency of the system. Steam Rankine, closed CO2 Brayton, and organic Rankine cycles are considered. The analyses show power block efficiencies in the range of 38–50%, with a global roundtrip efficiency of 37.1% in the case of the CO2 supercritical cycle. Elsevier https://hdl.handle.net/11441/178330 https://doi.org/10.1016/j.jclepro.2023.138417
title Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
spellingShingle Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
Carro Paulete, Andrés
Thermochemical energy storage
Calcium hydroxide
Calcium oxide
CSP
Power cycle integration
Supercritical carbon dioxide
title_short Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
title_full Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
title_fullStr Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
title_full_unstemmed Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
title_sort Indirect power cycles integration in concentrated solar power plants with thermochemical energy storage based on calcium hydroxide technology
author Carro Paulete, Andrés
author_facet Carro Paulete, Andrés
Chacartegui, Ricardo
Ortiz, Carlos
Becerra González, Juan Antonio
author_role author
author2 Chacartegui, Ricardo
Ortiz, Carlos
Becerra González, Juan Antonio
author2_role author
author
author
topic Thermochemical energy storage
Calcium hydroxide
Calcium oxide
CSP
Power cycle integration
Supercritical carbon dioxide
topic_facet Thermochemical energy storage
Calcium hydroxide
Calcium oxide
CSP
Power cycle integration
Supercritical carbon dioxide
description Thermochemical energy storage is attracting interest as a relevant alternative energy storage system in concentrating solar power plants. Efficient, low-cost, and environmentally friendly thermal energy storage is one of the main challenges for the large-scale deployment of solar energy. The reversible hydration/dehydration process of calcium oxide is one of the most promising concepts for energy storage integration at intermediate temperatures in solar plants. The efficient integration of concentrated solar power with a thermochemical energy storage system based on the calcium hydroxide concept, individually or integrated into a hybrid system with sensible heat storage, can be a feasible solution for long-term energy storage. Efficient energy recovery and subsequent power production are crucial. This work presents a novel analysis of the indirect integration of different power cycle configurations to optimise the roundtrip efficiency of the system. Steam Rankine, closed CO2 Brayton, and organic Rankine cycles are considered. The analyses show power block efficiencies in the range of 38–50%, with a global roundtrip efficiency of 37.1% in the case of the CO2 supercritical cycle.
publishDate 2023
format article
status_str acceptedVersion
url https://hdl.handle.net/11441/178330
https://doi.org/10.1016/j.jclepro.2023.138417
eu_rights_str_mv openAccess
publisher Elsevier
institution Universidad de Sevilla (US)
collection idUS. Depósito de Investigación de la Universidad de Sevilla
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
instname_str Universidad de Sevilla (US)
_version_ 1878732107156553728
publishDateSort 2023
author_browse Becerra González, Juan Antonio
Carro Paulete, Andrés
Chacartegui, Ricardo
Ortiz, Carlos
publisherStr Elsevier
score 6,8972664

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