Publication:
Experimental quantification of the particle-wall frictional forces in pseudo-2D gas fluidised 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.authorHernández Jiménez, Fernando
dc.contributor.authorSánchez Prieto, Javier
dc.contributor.authorSoria Verdugo, Antonio
dc.contributor.authorAcosta Iborra, Antonio
dc.date.accessioned2015-05-18T10:31:30Z
dc.date.available2015-11-01T23:00:04Z
dc.date.issued2013-10
dc.description.abstractIn this work a novel measurement technique for pseudo-2D fluidised beds is developed. The objective is to give an estimation of the overall frictional force between the solids and the front and rear walls of the bed. For doing this, the measured pressure signal in the bed is processed in combination with the solids distribution (i.e. centre of mass position, velocity and acceleration) obtained from digital image analysis of the optically accessible front view of the bed. This is performed by acquiring the pressure signal in the bed simultaneously to the digital images. Both the pressure and the digital images are connected through a simple force balance in the bed, and a particle-wall interaction coefficient is obtained assuming that the overall frictional force is proportional to the centre of mass velocity. The particle-wall interaction coefficient found using this technique is of the order of 40-120 kg/m(2) s in the bed tested, and the standard deviation of the frictional forces reaches more than 70% of the weight of the bed. Therefore, the results indicate that the contribution of the particle-to-wall friction on the fluctuation of the pressure drop in a pseudo-2D bed is not negligible.en
dc.description.sponsorshipThis work has been partially funded by the Spanish Government (Project DPI2009-10518) and the Autonomous Community of Madrid (Project S2009/ENE-1660).en
dc.description.statusPublicado
dc.format.extent11
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationChemical Engineering Science 102 (2013) 11 October, pp. 257-267en
dc.identifier.doi10.1016/j.ces.2013.08.020
dc.identifier.issn0009-2509
dc.identifier.publicationfirstpage257
dc.identifier.publicationissue11 Octoberen
dc.identifier.publicationlastpage267
dc.identifier.publicationtitleChemical Engineering Scienceen
dc.identifier.publicationvolume102
dc.identifier.urihttps://hdl.handle.net/10016/20744
dc.identifier.uxxiAR/0000014209
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDComunidad de Madrid. S2009/ENE-1660/CARDENERen
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.ces.2013.08.020
dc.rights© 2013 Elsevieren
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaIngeniería Industriales
dc.subject.otherFluidised beden
dc.subject.otherPseudo-2Den
dc.subject.otherWall effecten
dc.subject.otherFrictionen
dc.subject.otherForce balanceen
dc.titleExperimental quantification of the particle-wall frictional forces in pseudo-2D gas fluidised bedsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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