Modelling the temperature distribution in a horizontal packed-bed thermal energy storage system with copper slag as filler material

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dc.article.number116769
dc.catalogadoryvc
dc.contributor.authorCalderón Vásquez, Ignacio Andrés
dc.contributor.authorWolde Ponce Ian
dc.contributor.authorSegovia Araya, Valentina Constanza
dc.contributor.authorBattisti, F. G.
dc.contributor.authorCardemil Iglesias, José Miguel
dc.contributor.authorEscobar Moragas, Rodrigo Alfonso
dc.date.accessioned2025-05-22T14:36:28Z
dc.date.available2025-05-22T14:36:28Z
dc.date.issued2025
dc.description.abstractAir-solid packed-bed thermal energy storage (PBTES) systems are potential candidates to reduce implementation costs for renewable energy applications. However, heat transfer modelling requires high computational resources, which makes these models unsuitable for control and management in integrated systems. This work presents a fit parameter estimation model to predict the temperature distribution on an operational PBTES system. Through the non-linear least squares method, we use experimental data to calibrate an analytical solution for the heat exchange within an air-solid porous medium. This model presented a normalised root mean squared error of 4% to predict the temperature and the state of charge (SOC). Using mean values from the mass flow rate time series, the model allows estimating the SOC with a deviation of 0.5% from the one calculated from experimental data, and predicted that approximately 60% of the discharged energy was recovered from the storage tank walls, despite not explicitly modelling them. The proposed model avoids solving differential equations by directly computing the analytical solution, making it computationally efficient. Its accuracy and simplicity make it a strong candidate for integration into control and energy management systems for PBTES technologies.
dc.description.funderANID/FONDEF No. 22I10200; ANID/FONDECYT No. 1231186; ANID/FONDAP No. 1523A0006 ‘‘Solar Energy Research Center’’; SERC-Chile; PhD. Scholarship ANID-PFCHA Doctorado Nacional 2021-21210778; ANID/PFCHA Doctorado Nacional 2021-21211849; ANID/PFCHA Doctorado Nacional 2023-21232013; ANID/FONDECYT Postdoctorado 2022/3220792.
dc.format.extent12 páginas
dc.fuente.origenSCOPUS
dc.identifier.doi10.1016/j.est.2025.116769
dc.identifier.issn2352-152X
dc.identifier.scopusidSCOPUS_ID:105004642268
dc.identifier.urihttps://doi.org/10.1016/j.est.2025.116769
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104430
dc.information.autorucEscuela de Ingeniería; Calderón Vásquez, Ignacio Andrés; S/I; 1172070
dc.information.autorucEscuela de Ingeniería; Wolde Ponce, Ian; S/I; 1124033
dc.information.autorucEscuela de Ingeniería; Segovia Araya, Valentina Constanza; S/I; 1160521
dc.information.autorucEscuela de Ingeniería; Cardemil Iglesias, José Miguel; 0000-0002-9022-8150; 119912
dc.information.autorucEscuela de Ingeniería; Escobar Moragas, Rodrigo Alfonso; 0000-0001-9097-7461; 158663
dc.language.isoen
dc.nota.accesocontenido completo
dc.revistaJournal of Energy Storage
dc.rightsacceso restringido
dc.subjectCopper slag-based storage
dc.subjectFit-parameter model
dc.subjectPacked-bed thermal energy storage
dc.subjectStorage transient behaviour
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods07 Affordable and clean energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleModelling the temperature distribution in a horizontal packed-bed thermal energy storage system with copper slag as filler material
dc.typeartículo
dc.volumen125
sipa.codpersvinculados1172070
sipa.codpersvinculados1124033
sipa.codpersvinculados1160521
sipa.codpersvinculados119912
sipa.codpersvinculados158663
sipa.trazabilidadSCOPUS;2025-05-18
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