Fluidization of Group B particles with a rotating distributor

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dc.contributor.author Sobrino Fernández, Celia
dc.contributor.author Almendros Ibáñez, José Antonio
dc.contributor.author Santana Santana, Domingo José
dc.contributor.author Vega Blázquez, Mercedes de
dc.date.accessioned 2008-02-15T14:27:48Z
dc.date.available 2008-02-15T14:27:48Z
dc.date.issued 2008-02-12
dc.identifier.bibliographicCitation Powder Tecnology, Vol 181, n. 3, pp 273-280 (2008)
dc.identifier.issn 0032-5910
dc.identifier.uri http://hdl.handle.net/10016/1223
dc.description.abstract A novel rotating distributor fluidized bed is presented. The distributor is a rotating perforated plate, with 1% open-area ratio. This work evaluates the performance of this new design, considering pressure drop, Δp, and quality of fluidization. Bed fluidization was easily achieved with the proposed device, improving the solid mixing and the quality of fluidization. In order to examine the effect of the rotational speed of the distributor plate on the hydrodynamic behavior of the bed, minimum fluidization velocity, Umf, and pressure fluctuations were analyzed. Experiments were conducted in the bubbling free regime in a 0.19 m i.d. fluidized bed, operating with Group B particles according to Geldart's classification. The pressure drop across the bed and the standard deviation of pressure fluctuations, σp, were used to find the minimum fluidization velocity, Umf. A decrease in Umf is observed when the rotational speed increases and a rise in the measured pressure drop was also found. Frequency analysis of pressure fluctuations shows that fluidization can be controlled by the adjustable rotational speed, at several excess gas velocities. Measurements with several initial static bed heights were taken, in order to analyze the influence of the initial bed mass inventory, over the effect of the distributor rotation on the bed hydrodynamics.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.subject.other Fluidized bed
dc.subject.other Rotating distributor
dc.subject.other Hydrodynamics
dc.subject.other Pressure fluctuations
dc.subject.other Minimum fluidization velocity
dc.title Fluidization of Group B particles with a rotating distributor
dc.type article
dc.type.review PeerReviewed
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1016/j.powtec.2007.05.014
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Física
dc.identifier.doi 10.1016/j.powtec.2007.05.014
dc.rights.accessRights openAccess
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