An innovative strategy for improvement of energy efficiency in cement production by means of stratified thermal energy storage integration

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dc.article.number119825
dc.catalogadoryvc
dc.contributor.authorWolde, Ian
dc.contributor.authorFamiglietti, Antonio
dc.contributor.authorAbbas, Rubén
dc.contributor.authorCardemil Iglesias, José Miguel
dc.date.accessioned2025-05-20T21:53:38Z
dc.date.available2025-05-20T21:53:38Z
dc.date.issued2025
dc.description.abstractThe cement industry represents a heavy emission source due to its large heat demands in its high-temperature processes, as well as a substantial source of CO2 emissions due to the ongoing chemical reactions. The primary air going into the combustion chambers could be pre-heated using available waste heat from the raw mill. However, batch operation imposes a challenge in supplying a continuous heat flow. Therefore, medium-tohigh-temperature thermal energy storage technologies could be assessed using pinch analysis to design and determine the operating parameters of a heat network with storage, aiming to facilitate the use of waste heat. Using a European cement plant as a reference, an assessment of a heat recovery system with storage is presented based on primary air preheating. The system is assessed considering thermal energy storage technologies that commonly present thermal stratification in order to reduce costs by working with a single storage tank. Air and thermal oil are evaluated as heat transfer fluids, and different filler materials for storage are considered for thermocline thermal energy storage systems. Results show that low-cost media such as copper slags could recover the system’s investment in less than a year, providing savings in the plant heat demand of up to 1.04%.
dc.description.funderANID/FONDAP No. 1523A0006: ‘‘Solar Energy Research Center"; SERC-Chile and ANID/ FONDEF No. 22i10200; ANID PFCHA/Doctorado Nacional No. 2021-21211849
dc.format.extent13 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1016/j.enconman.2025.119825
dc.identifier.urihttps://doi.org/10.1016/j.enconman.2025.119825
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104424
dc.information.autorucEscuela de Ingeniería; Cardemil Iglesias, José Miguel; 0000-0002-9022-8150; 119912
dc.issue.numero0196-8904
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherElsevier Ltd.
dc.revistaEnergy Conversion and Management
dc.rightsacceso restringido
dc.subjectCement production
dc.subjectThermal energy storage
dc.subjectWaste heat recovery
dc.subjectPinch analysis
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods07 Affordable and clean energy
dc.subject.ods12 Responsible consumption and production
dc.subject.odspa07 Energía asequible y no contaminante
dc.subject.odspa12 Producción y consumo responsables
dc.titleAn innovative strategy for improvement of energy efficiency in cement production by means of stratified thermal energy storage integration
dc.typeartículo
dc.volumen338
sipa.codpersvinculados119912
sipa.trazabilidadORCID;2025-05-19
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