Increasing the solar share in combined cycles through thermochemical energy storage

The integration of Concentrating Solar Power (CSP) in combined cycles is a subjects of increasing attention. Combined cycles require high temperature at the gas turbine inlet (typically over 1000 °C), which hinders plant operation in the absence of direct solar radiation using currently commercial s...

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Autores: Ortiz Domínguez, Carlos, Chacartegui, Ricardo, Valverde Millán, José Manuel, Carro Paulete, Andrés, Tejada, C., Valverde García, Juan Sebastián
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/103414
Acceso en línea:https://hdl.handle.net/11441/103414
https://doi.org/10.1016/j.enconman.2020.113730
Access Level:acceso abierto
Palabra clave:Thermochemical energy storage
Dispatchability
Solar energy
Combined cycle
Calcium-looping
Capacity factor
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spelling Increasing the solar share in combined cycles through thermochemical energy storageOrtiz Domínguez, CarlosChacartegui, RicardoValverde Millán, José ManuelCarro Paulete, AndrésTejada, C.Valverde García, Juan SebastiánThermochemical energy storageDispatchabilitySolar energyCombined cycleCalcium-loopingCapacity factorThe integration of Concentrating Solar Power (CSP) in combined cycles is a subjects of increasing attention. Combined cycles require high temperature at the gas turbine inlet (typically over 1000 °C), which hinders plant operation in the absence of direct solar radiation using currently commercial storage technologies based on molten salts (with a temperature limit around 600 °C). Thus, solar power share in current Integrated Solar Combined Cycles (ISCC) is typically lower than 20%, while most of the thermal power required is provided by natural gas. The present manuscript proposes the integration in combined cycles of a Thermochemical Energy Storage (TCES) system based on the Calcium-Looping process, which can release the stored energy at temperatures above 1000 °C. The storage charging step uses the heat provided by a CO2 stream previously heated in a high-temperature solar receiver. The configuration of the solar receiver-calciner is fundamental to determine the amount of storable energy. Results from the conceptual model simulation predict overall plant efficiencies above 45% (excluding solar side losses), suggesting a high potential for the development of this novel integration that would allow enhancing the solar share in combined cycles.European Union, Horizon 2020, grant agreement No 727348, project SOCRATCESMinisterio de Economía y Competitividad (MINECO-FEDER) CTQ2017- 83602-C2 (-1-R and -2-R)ElsevierIngeniería EnergéticaMatemática Aplicada IIElectrónica y Electromagnetismo2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/103414https://doi.org/10.1016/j.enconman.2020.113730reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEnergy Conversion and Management, 229, Article 113730.727348CTQ2017- 83602-C2 (-1-R and -2-R)https://www.sciencedirect.com/science/article/pii/S0196890420312541?via=ihubinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1034142026-06-17T12:51:07Z
dc.title.none.fl_str_mv Increasing the solar share in combined cycles through thermochemical energy storage
title Increasing the solar share in combined cycles through thermochemical energy storage
spellingShingle Increasing the solar share in combined cycles through thermochemical energy storage
Ortiz Domínguez, Carlos
Thermochemical energy storage
Dispatchability
Solar energy
Combined cycle
Calcium-looping
Capacity factor
title_short Increasing the solar share in combined cycles through thermochemical energy storage
title_full Increasing the solar share in combined cycles through thermochemical energy storage
title_fullStr Increasing the solar share in combined cycles through thermochemical energy storage
title_full_unstemmed Increasing the solar share in combined cycles through thermochemical energy storage
title_sort Increasing the solar share in combined cycles through thermochemical energy storage
dc.creator.none.fl_str_mv Ortiz Domínguez, Carlos
Chacartegui, Ricardo
Valverde Millán, José Manuel
Carro Paulete, Andrés
Tejada, C.
Valverde García, Juan Sebastián
author Ortiz Domínguez, Carlos
author_facet Ortiz Domínguez, Carlos
Chacartegui, Ricardo
Valverde Millán, José Manuel
Carro Paulete, Andrés
Tejada, C.
Valverde García, Juan Sebastián
author_role author
author2 Chacartegui, Ricardo
Valverde Millán, José Manuel
Carro Paulete, Andrés
Tejada, C.
Valverde García, Juan Sebastián
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Energética
Matemática Aplicada II
Electrónica y Electromagnetismo
dc.subject.none.fl_str_mv Thermochemical energy storage
Dispatchability
Solar energy
Combined cycle
Calcium-looping
Capacity factor
topic Thermochemical energy storage
Dispatchability
Solar energy
Combined cycle
Calcium-looping
Capacity factor
description The integration of Concentrating Solar Power (CSP) in combined cycles is a subjects of increasing attention. Combined cycles require high temperature at the gas turbine inlet (typically over 1000 °C), which hinders plant operation in the absence of direct solar radiation using currently commercial storage technologies based on molten salts (with a temperature limit around 600 °C). Thus, solar power share in current Integrated Solar Combined Cycles (ISCC) is typically lower than 20%, while most of the thermal power required is provided by natural gas. The present manuscript proposes the integration in combined cycles of a Thermochemical Energy Storage (TCES) system based on the Calcium-Looping process, which can release the stored energy at temperatures above 1000 °C. The storage charging step uses the heat provided by a CO2 stream previously heated in a high-temperature solar receiver. The configuration of the solar receiver-calciner is fundamental to determine the amount of storable energy. Results from the conceptual model simulation predict overall plant efficiencies above 45% (excluding solar side losses), suggesting a high potential for the development of this novel integration that would allow enhancing the solar share in combined cycles.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/103414
https://doi.org/10.1016/j.enconman.2020.113730
url https://hdl.handle.net/11441/103414
https://doi.org/10.1016/j.enconman.2020.113730
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Energy Conversion and Management, 229, Article 113730.
727348
CTQ2017- 83602-C2 (-1-R and -2-R)
https://www.sciencedirect.com/science/article/pii/S0196890420312541?via=ihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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