Publication:
A novel approach for modeling bubbling gas–solid fluidized beds

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorVilla Briongos, Javier
dc.contributor.authorSánchez Delgado, Sergio
dc.contributor.authorAcosta Iborra, Antonio
dc.contributor.authorSantana Santana, Domingo José
dc.date.accessioned2012-03-09T11:31:48Z
dc.date.available2012-03-09T11:31:48Z
dc.date.issued2011-07
dc.description.abstractA phenomenological discrete bubble model is proposed to help in the design and dynamic diagnosis of bubbling fluidized beds. An activation region mechanism is presented for bubble formation, making it possible to model large beds in a timely manner. The bubbles are modeled as spherical-cap discrete elements that rise through the emulsion phase that is considered as a continuum. The model accounts for the simultaneous interaction of neighboring bubbles by including the trailing effects due to the wake acceleration force. The coalescence process is not irreversible and therefore, the coalescing bubble pair is free to interact with other rising bubbles originating the splitting phenomena. To validate the model, the simulated dynamics are compared with both experimental and literature data. Time, frequency, and state space analysis are complementarily used with a multiresolution approach based on the empirical method of decomposition to explore the different dynamic scales appearing in both the simulated time series and those obtained from experimental runs. It is concluded that the bubble dynamics interactions play the main role as the driver of the resulting bed dynamics, matching the main features of measured bubble dynamics. Exploding bubble phenomena have been identified by establishing a direct relation between the bubble generation, interaction and eruption, and the measured signals
dc.description.sponsorshipProjects DPI2009-10518 (MICINN) and CARDENER-CM (S2009ENE-1660)
dc.description.statusPublicado
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationAIChE Journal (Jul. 2011), 57(7), 1733-1750
dc.identifier.doi10.1002/aic.12375
dc.identifier.issn0001-1541
dc.identifier.publicationfirstpage1733
dc.identifier.publicationissue7
dc.identifier.publicationlastpage1750
dc.identifier.publicationtitleAIChE Journal
dc.identifier.publicationvolume57
dc.identifier.urihttps://hdl.handle.net/10016/13780
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.projectIDComunidad de Madrid. S2009/ENE-1660/CARDENER-CM
dc.relation.publisherversionhttp://dx.doi.org/10.1002/aic.12375
dc.rights© American Institute of Chemical Engineers
dc.rights.accessRightsopen access
dc.subject.ecienciaIngeniería Industrial
dc.subject.ecienciaFísica
dc.subject.otherFluidized bed
dc.subject.otherFluidization
dc.subject.otherMultiscale modeling
dc.subject.otherBubble phenomena
dc.subject.otherBubbling fluidized beds
dc.subject.otherChaos
dc.subject.otherMultiresolution analysis
dc.titleA novel approach for modeling bubbling gas–solid fluidized beds
dc.typeresearch article*
dc.type.hasVersionSMUR*
dspace.entity.typePublication
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