Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction

García Gutiérrez, Luis Miguel; Hernández Jiménez, Fernando; Cano Pleite, Eduardo; Soria Verdugo, Antonio

Publication:
Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction

dc.affiliation.dpto	UC3M. Departamento de Ingeniería Térmica y de Fluidos	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sostenible	es
dc.affiliation.grupoinv	UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos	es
dc.contributor.author	García Gutiérrez, Luis Miguel
dc.contributor.author	Hernández Jiménez, Fernando
dc.contributor.author	Cano Pleite, Eduardo
dc.contributor.author	Soria Verdugo, Antonio
dc.date.accessioned	2021-04-28T09:32:12Z
dc.date.available	2021-04-28T09:32:12Z
dc.date.issued	2017-08-01
dc.description.abstract	The mixing of fuel particles is a key issue on the performance of fluidized bed reactors. In this work, the motion of a non-reactive fuel particle in a pseudo-2D bubbling fluidized bed operated at ambient conditions is simulated employing a hybrid-model and introducing a new friction term that accounts for the effect of the bed vessel front and rear walls. The hybrid-model, implemented in the code MFIX, simulates the dense and gas phases using a Two-Fluid Model (TFM) whereas the fuel particles are modeled using a Discrete Element Method (DEM). The importance of the present hybrid-model is that the interaction of the continuum phases with the fuel particles behavior is fully coupled. To improve the accuracy of the simulated fuel particle motion in a bubbling fluidized bed, a model accounting for the effect of the bed front and rear walls on the continuum solid phase is combined with the hybrid-model. The rising and sinking velocity of the fuel particles, the circulation time and statistical parameters associated to the location of the fuel particle in the bed were obtained from the simulations and compared with experimental measurements. According to the results, the prediction of these parameters is clearly improved when the friction term is included in the simulation.	en
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”.	en
dc.format.extent	9
dc.identifier.bibliographicCitation	Garcia-Gutierrez, L., Hernández-Jiménez, F., Cano-Pleite, E. & Soria-Verdugo, A. (2017). Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction. Chemical Engineering Journal, vol. 321, pp. 175–183.	en
dc.identifier.doi	https://doi.org/10.1016/j.cej.2017.03.109
dc.identifier.issn	1385-8947
dc.identifier.publicationfirstpage	175
dc.identifier.publicationlastpage	183
dc.identifier.publicationtitle	Chemical Engineering Journal	en
dc.identifier.publicationvolume	321
dc.identifier.uri	https://hdl.handle.net/10016/32498
dc.identifier.uxxi	AR/0000020042
dc.language.iso	eng
dc.publisher	Elsevier	en
dc.rights	© 2017 Elsevier B.V.	en
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España	*
dc.rights.accessRights	open access	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/	*
dc.subject.eciencia	Química	es
dc.subject.other	Fuel motion	en
dc.subject.other	Mixing	en
dc.subject.other	Bubbling fluidized bed	en
dc.subject.other	Hybrid-model	en
dc.subject.other	Wall friction	en
dc.subject.other	Dem hybrid model	en
dc.subject.other	Numerical-simulation	en
dc.subject.other	Object motion	en
dc.subject.other	Segregation	en
dc.subject.other	Thickness	en
dc.subject.other	Forces	en
dc.title	Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction	en
dc.type	research article	*
dc.type.hasVersion	AM	*
dspace.entity.type	Publication