Lateral solids meso-mixing in pseudo-2D fluidized beds by means of TFM simulations

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Show simple item record Hernández Jiménez, Fernando Sánchez Prieto, Javier Cano Pleite, Eduardo Soria Verdugo, Antonio 2021-04-29T07:34:14Z 2021-04-29T07:34:14Z 2018-07-01
dc.identifier.bibliographicCitation Hernández-Jiménez, F., Sánchez-Prieto, J., Cano-Pleite, E. & Soria-Verdugo, A. (2018). Lateral solids meso-mixing in pseudo-2D fluidized beds by means of TFM simulations. Powder Technology, vol. 334, pp. 183–191.
dc.identifier.issn 0032-5910
dc.description.abstract This work studies the solids mixing process in fluidized beds by means of numerical simulations using the two-fluid model (TFM) available in the MFIX code. The numerical results are compared with experiments conducted in a pseudo-2D fluidized bed. The experiments were performed by placing particles of the same diameter and density but of different colour in two vertical layers. To reproduce numerically the experimental results, three phases are defined: one for the gas phase and two for the solid phases, corresponding to the particles of different colours employed in the experiments, to make them separately traceable. To improve the simulation prediction, a friction model that accounts for the effect of the front and rear walls on the continuum solid phases was introduced in the TFM. Mixing times of the same order of magnitude are obtained from the simulations and the experiments when the mixing process is analysed macroscopically. Furthermore, the simulations are employed to study the solids mixing in the fluidized bed based on a more detailed mixing index. This new mixing index is determined from information of the three phases involved and it is used to predict the mixing behaviours beyond the capabilities of the experimental facility.
dc.description.sponsorship The authors gratefully acknowledge the financial support provided by Fundación Iberdrola under the “Programa de Ayudas a la Investigación en Energía y Medioambiente 2016”.
dc.format.extent 9
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2018 Elsevier B.V.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Fluidized bed
dc.subject.other Solids mixing
dc.subject.other Mixing index
dc.subject.other TFM
dc.subject.other Pseudo-2D
dc.subject.other Wall friction
dc.title Lateral solids meso-mixing in pseudo-2D fluidized beds by means of TFM simulations
dc.type article
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 183
dc.identifier.publicationlastpage 191
dc.identifier.publicationtitle Powder Technology
dc.identifier.publicationvolume 334
dc.identifier.uxxi AR/0000021598
dc.affiliation.dpto UC3M. Departamento de Ingeniería Térmica y de Fluidos
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sostenible
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos
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