Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model

[EN]A pumped heat energy storage (PHES) system based on a Rankine cycle for supercritical working fluids, such as carbon dioxide and ammonia, accounting for the irreversible latent and sensible heat transfers between the working fluid and the storage liquid medium, as water or thermal oil, is analyz...

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Autores: Salomone-González, D., Curto-Risso, Pedro Luis, Calvo Hernández, Antonio, Medina Domínguez, Alejandro, Roco, J. M. M., González Ayala, Julián
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/150963
Acceso en línea:http://hdl.handle.net/10366/150963
Access Level:acceso abierto
Palabra clave:Water storage
Coupled transcritical Rankine model
Round trip efficiency
Internal and external irreversibilities
Heat leak
Energy storage
2210.32 Termodinámica
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spelling Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like modelSalomone-González, D.Curto-Risso, Pedro LuisCalvo Hernández, AntonioMedina Domínguez, AlejandroRoco, J. M. M.González Ayala, JuliánWater storageCoupled transcritical Rankine modelRound trip efficiencyInternal and external irreversibilitiesHeat leakEnergy storage2210.32 Termodinámica[EN]A pumped heat energy storage (PHES) system based on a Rankine cycle for supercritical working fluids, such as carbon dioxide and ammonia, accounting for the irreversible latent and sensible heat transfers between the working fluid and the storage liquid medium, as water or thermal oil, is analyzed. The model also includes several parameters such as pressure losses, heat exchanger efficiencies, and isentropic efficiencies of the compressor, pump, and expansion devices (such as turbines and valves), that take into account the main internal and external losses and heat leak to the environment. The model allows for the calculation of specific energy, the heat pump performance coefficient, heat engine efficiency, and overall round-trip efficiency, as well as the temperatures of the working fluid and reservoirs. A zero-dimensional model is also used to determine the time dependence of heat leak in the tanks. The main results show that this technology could achieve round trip efficiency values in the order of 50–70%. Irreversibilities in compression and expansion appears as the most influential energy losses factor. The time effect of the ambient conditions on the tanks has been analyzed for a wet subtropical climate but it seems that the ambient conditions have no major influence on the performance of the system. In addition, explicit numerical results and temperature–entropy plots are presented for two representative systems as carbon dioxide-water and ammonia-thermal oil to take into account the main values in an operating condition.Publicación en abierto financiada por la Universidad de Salamanca como participante en el Acuerdo Transformativo CRUE-CSIC con Elsevier, 2021-2024202220222022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/150963reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésAuthors acknowledge financial support from Program IA, University of Salamanca (Ref. 18K203), and from Agencia Nacional de Investigación e Innovación (ANII), SpFondo Sectorial de Energía, Uruguay; contract FSE-1-2018-1-153077 and Scholarship program of ANII, Spain POS-NAC-2021-1-16980; University of Salamanca, with Contract No. 0218 463AB01Attribution-4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1509632026-06-07T06:28:51Z
dc.title.none.fl_str_mv Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
title Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
spellingShingle Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
Salomone-González, D.
Water storage
Coupled transcritical Rankine model
Round trip efficiency
Internal and external irreversibilities
Heat leak
Energy storage
2210.32 Termodinámica
title_short Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
title_full Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
title_fullStr Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
title_full_unstemmed Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
title_sort Pumped heat energy storage with liquid media: Thermodynamic assessment by a transcritical Rankine-like model
dc.creator.none.fl_str_mv Salomone-González, D.
Curto-Risso, Pedro Luis
Calvo Hernández, Antonio
Medina Domínguez, Alejandro
Roco, J. M. M.
González Ayala, Julián
author Salomone-González, D.
author_facet Salomone-González, D.
Curto-Risso, Pedro Luis
Calvo Hernández, Antonio
Medina Domínguez, Alejandro
Roco, J. M. M.
González Ayala, Julián
author_role author
author2 Curto-Risso, Pedro Luis
Calvo Hernández, Antonio
Medina Domínguez, Alejandro
Roco, J. M. M.
González Ayala, Julián
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Water storage
Coupled transcritical Rankine model
Round trip efficiency
Internal and external irreversibilities
Heat leak
Energy storage
2210.32 Termodinámica
topic Water storage
Coupled transcritical Rankine model
Round trip efficiency
Internal and external irreversibilities
Heat leak
Energy storage
2210.32 Termodinámica
description [EN]A pumped heat energy storage (PHES) system based on a Rankine cycle for supercritical working fluids, such as carbon dioxide and ammonia, accounting for the irreversible latent and sensible heat transfers between the working fluid and the storage liquid medium, as water or thermal oil, is analyzed. The model also includes several parameters such as pressure losses, heat exchanger efficiencies, and isentropic efficiencies of the compressor, pump, and expansion devices (such as turbines and valves), that take into account the main internal and external losses and heat leak to the environment. The model allows for the calculation of specific energy, the heat pump performance coefficient, heat engine efficiency, and overall round-trip efficiency, as well as the temperatures of the working fluid and reservoirs. A zero-dimensional model is also used to determine the time dependence of heat leak in the tanks. The main results show that this technology could achieve round trip efficiency values in the order of 50–70%. Irreversibilities in compression and expansion appears as the most influential energy losses factor. The time effect of the ambient conditions on the tanks has been analyzed for a wet subtropical climate but it seems that the ambient conditions have no major influence on the performance of the system. In addition, explicit numerical results and temperature–entropy plots are presented for two representative systems as carbon dioxide-water and ammonia-thermal oil to take into account the main values in an operating condition.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/150963
url http://hdl.handle.net/10366/150963
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Authors acknowledge financial support from Program IA, University of Salamanca (Ref. 18K203), and from Agencia Nacional de Investigación e Innovación (ANII), SpFondo Sectorial de Energía, Uruguay; contract FSE-1-2018-1-153077 and Scholarship program of ANII, Spain POS-NAC-2021-1-16980; University of Salamanca, with Contract No. 0218 463AB01
dc.rights.none.fl_str_mv Attribution-4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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