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Computational model of a Calcium-looping fluidized bed calcination reactor with imposed concentrated solar irradiance

2023-07Journal article Open access
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dc.contributor.authorRodrigues, Diogo
dc.contributor.authorRivero, Mayra Alvarez
dc.contributor.authorPinheiro, Carla I.C.
dc.contributor.authorCardoso, João P.
dc.contributor.authorMendes, Luís Filipe
dc.date.accessioned2023-06-28T10:13:44Z
dc.date.available2023-06-28T10:13:44Z
dc.date.issued2023-07
dc.description.abstractABSTRACT: The Calcium-looping process is a promising option for thermochemical energy storage in concentrating solar power plants. A crucial element of this process is the solar calcination reactor, where the endothermic reaction of CaCO3 calcination occurs with formation of CaO and CO2. The solar energy that is chemically stored in the reaction products can be retrieved by the exothermic reaction of CaO carbonation when needed. In this article, a new computational model is developed for the solar calcination reactor in this Calcium-looping process. The calcination reaction takes place in the riser of a continuous circulating fluidized bed that corresponds to an absorber tube exposed to concentrated solar radiation, which allows the reaction chamber to be indirectly heated. A core-annulus heat transfer model and a modified version of the Kunii-Levenspiel fluid dynamics model are used. In contrast to previous models found in the literature, the change in the mass flow rate of the species and in the density of the phases due to the reaction is considered. Simulation studies are performed with a fixed and imposed concentrated solar irradiance on the reactor wall, which varies in both the axial and angular directions. Wall conduction in the angular direction is also considered. The results show that nearly complete calcination can be achieved with a reactor of 4 m of height. A sensitivity analysis with respect to the model parameters and inlet conditions shows that the calcination conversion is mostly affected by the solids mass flow rate and the bed temperature at the inlet.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRodrigues, D... [et.al.] - Computational model of a Calcium-looping fluidized bed calcination reactor with imposed concentrated solar irradiance. In: Solar Energy, 2023, vol. 258, p. 72-87pt_PT
dc.identifier.doi10.1016/j.solener.2023.04.018pt_PT
dc.identifier.eissn1471-1257
dc.identifier.issn0038-092X
dc.identifier.urihttp://hdl.handle.net/10400.9/4061
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUIDB/EEA/50009/2020pt_PT
dc.relationALT20-03-0145-FEDER-022113pt_PT
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relationCenter for Natural Resources and Environment
dc.relation.publisherversionhttps://doi.org/10.1016/j.solener.2023.04.018pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSolar energypt_PT
dc.subjectConcentrated solar powerpt_PT
dc.subjectThermochemical processespt_PT
dc.subjectEnergy storagept_PT
dc.subjectFluidised bedpt_PT
dc.titleComputational model of a Calcium-looping fluidized bed calcination reactor with imposed concentrated solar irradiancept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCenter for Natural Resources and Environment
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEAM-PEC%2F32342%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04028%2F2020/PT
oaire.citation.endPage87pt_PT
oaire.citation.startPage72pt_PT
oaire.citation.titleSolar Energypt_PT
oaire.citation.volume258pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCardoso
person.givenNameJoão
person.identifier.orcid0000-0002-0479-1474
person.identifier.ridL-4690-2014
person.identifier.scopus-author-id56202423800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoverya50e3ad7-0025-45a2-a8c4-1646dfe2157e
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