Operational dynamics of packed-bed thermal energy storage: A novel approach to monitor its thermal state

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dc.article.number116954
dc.catalogadorgjm
dc.contributor.authorCalderón Vásquez, Ignacio Andrés
dc.contributor.authorBattisti, Felipe G.
dc.contributor.authorEscobar Moragas, Rodrigo
dc.contributor.authorCardemil Iglesias, José Miguel
dc.date.accessioned2025-06-19T14:10:10Z
dc.date.available2025-06-19T14:10:10Z
dc.date.issued2025
dc.description.abstractHeating solids arranged in a packed bed is a simple method to store sensible thermal energy. This study focuses on cylindrical packed-bed configurations, where a temperature profile develops along the stacked solids and moves towards the system's outlet. Therefore, the availability to store thermal energy in the packed bed decreases over time and the exhaust energy outside the storage increases. To address this challenge, the present work introduces a novel operational metric to monitor the thermal state of packed-bed storage systems. This operational metric relates the stored potential in the system with an ideal stage, and its definition enables constraining the system's operation with a simple mathematical condition, which is a significant outcome from the traditional approach of using arbitrary temperature limits to stop the charging process. Its calculation requires the measurement of the top and bottom temperatures of the packed bed and knowing the system's maximum operating temperatures. When applying the mathematical condition, the required charging time to reach that stage and the cut-off temperature can be obtained. A parametric analysis correlated these operating quantities to design data to predict their value given the design conditions. This work provides a new perspective on the dynamic operation of cylindrical packed-bed sensible thermal energy storage systems, offering a simple yet effective strategy to enhance system performance.
dc.description.funderANID
dc.description.funderSERC
dc.description.funderFONDAP
dc.description.funderFONDEF
dc.description.funderCONICYT
dc.description.funderFONDECYT
dc.format.extent12 páginas
dc.fuente.origenSCOPUS
dc.identifier.doi10.1016/j.est.2025.116954
dc.identifier.issn2352-152X
dc.identifier.scopusidSCOPUS_ID:105007146278
dc.identifier.urihttps://doi.org/10.1016/j.est.2025.116954
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104696
dc.information.autorucEscuela de Ingeniería; Calderón Vásquez, Ignacio Andrés; S/I; 1172070
dc.information.autorucEscuela de Ingeniería; Escobar Moragas, Rodrigo; 0000-0001-9097-7461; 158663
dc.information.autorucEscuela de Ingeniería; Cardemil Iglesias, José Miguel; 0000-0002-9022-8150; 119912
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaJournal of Energy Storage
dc.rightsacceso restringido
dc.subjectOperational behavior
dc.subjectState of charge
dc.subjectThermal energy storage
dc.subjectThermal management
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods07 Affordable and clean energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleOperational dynamics of packed-bed thermal energy storage: A novel approach to monitor its thermal state
dc.typeartículo
dc.volumen129
sipa.codpersvinculados1172070
sipa.codpersvinculados158663
sipa.codpersvinculados119912
sipa.trazabilidadSCOPUS;2025-06-15
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