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Modelling a calcium-looping fluidised bed calcination reactor with solar-driven heat flux

2021-11Journal article Open access
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dc.contributor.authorRivero, Mayra Alvarez
dc.contributor.authorRodrigues, Diogo
dc.contributor.authorPinheiro, Carla I.C.
dc.contributor.authorCardoso, João P.
dc.contributor.authorMendes, Luís Filipe
dc.date.accessioned2022-01-05T10:27:23Z
dc.date.available2022-01-05T10:27:23Z
dc.date.issued2021-11
dc.description.abstractABSTRACT: A new unidimensional computational model is developed to simulate a calcination reactor in a Calcium-looping process for thermochemical energy storage in concentrating solar power systems. The proposed reactor is an absorber tube exposed to concentrated solar radiation. This tube is also the riser of a circulating fluidised bed where the calcination reaction takes place. The proposed heat transfer process models are based on the core-annulus model and the hydrodynamic model is a modified version of the Kunii-Levenspiel model. The model considers the change in the mass flow rate of species and the density change of the phases in the axial direction of the reactor, usually considered constant in the models found in the literature. A higher calcination efficiency, up to 8 p.p., is obtained for the studied reference case when assuming constant density and mass flow rate. Simulations were performed by imposing a solar-driven non-uniform heat flux distribution on the reactor wall. The results show that a 6 m height reactor allows achieving a calcination efficiency of 66% for the reference conditions used. A sensitivity analysis shows that the solids mass flow rate and the inlet bed temperature are the parameters that most affect the calcination process efficiency.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRivero, Mayra Alvarez... [et.al.] - Modelling a calcium-looping fluidised bed calcination reactor with solar-driven heat flux. In: Chemical Engineering Transactions, 2021, Vol. 88, p. 871-876pt_PT
dc.identifier.doi10.3303/CET2188145pt_PT
dc.identifier.issn2283-9216
dc.identifier.urihttp://hdl.handle.net/10400.9/3664
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAIDIC - The Italian Association of Chemical Engineeringpt_PT
dc.relationALT20-03-0145-FEDER-022113pt_PT
dc.relation.publisherversionhttps://doi.org/10.3303/CET2188145pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSolar energypt_PT
dc.subjectThermochemical processespt_PT
dc.subjectEnergy storagept_PT
dc.subjectConcentrated solar powerpt_PT
dc.subjectFluidised bedpt_PT
dc.titleModelling a calcium-looping fluidised bed calcination reactor with solar-driven heat fluxpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEAM-PEC%2F32342%2F2017/PT
oaire.citation.endPage876pt_PT
oaire.citation.startPage871pt_PT
oaire.citation.titleChemical Engineering Transactionspt_PT
oaire.citation.volume88pt_PT
oaire.fundingStream3599-PPCDT
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.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa50e3ad7-0025-45a2-a8c4-1646dfe2157e
relation.isAuthorOfPublication.latestForDiscoverya50e3ad7-0025-45a2-a8c4-1646dfe2157e
relation.isProjectOfPublication073d3650-7c2f-45b4-84b3-5c8ea871f745
relation.isProjectOfPublication.latestForDiscovery073d3650-7c2f-45b4-84b3-5c8ea871f745

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