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dc.creatorGrbavčić, Željko
dc.creatorArsenijević, Zorana
dc.creatorGarić Grulović, Radmila
dc.date.accessioned2019-01-30T17:21:45Z
dc.date.available2019-01-30T17:21:45Z
dc.date.issued2009
dc.identifier.issn0032-5910
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/604
dc.description.abstractSingle particle settling velocities through water fluidized beds of mono-sized glass spheres (dp = 0.645, 1.20, 1.94, 2.98 and 5 mm in diameter) were studied experimentally using a column, 40 mm in diameter. The settling spherical particles (Dp = 10 and 19.5 mm) had different densities (1237 to 8320 kg/m3), while the settling particles (Dp = 5 and 2.98 mm) were glass spheres. The pseudo-fluid model, which considers a liquid fluidized bed as a homogenous pseudo-fluid, predicts single particle settling velocities quite well if the ratio Dp/dp is larger than about 10. With decreasing ratio Dp/dp, the overall friction between the settling particle and the fluidized media increases. A method for predicting single particle settling velocities through a liquid fluidized bed is proposed and discussed. Following the approach of Van der Wielen et al. [L.A.M. Van der Wielen, M.H.H Van Dam, K.C.A.M. Van Luyben, On the relative motion of a particle in a swarm of different particles, Chem. Eng. Sci. 51 (2006) 995-1008], the overall friction is decomposed into a particle-fluid and a particle-particle component. The effective buoyancy force is calculated using the transition function proposed by Ruzicka [M.C. Ruzicka, On buoyancy in dispersion, Chem. Eng. Sci. 61 (2006) 2437-2446]. A simple model for predicting the collision force is proposed, as well as a correlation for the collision coefficient. The mean absolute deviation between the experimental and calculated slip velocities was 5.08%.en
dc.relationResearch Council of Serbia
dc.rightsrestrictedAccess
dc.sourcePowder Technology
dc.subjectEffective densityen
dc.subjectLiquid fluidized beden
dc.subjectPseudo-fluiden
dc.subjectSettling velocityen
dc.titlePrediction of single particle settling velocities through liquid fluidized bedsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractAрсенијевић, Зорана; Грбавчић, Ж.Б.; Гарић Груловић, Радмила;
dc.citation.volume190
dc.citation.issue3
dc.citation.spage283
dc.citation.epage291
dc.citation.other190(3): 283-291
dc.citation.rankM21
dc.identifier.doi10.1016/j.powtec.2008.08.005
dc.identifier.rcubConv_4186
dc.identifier.scopus2-s2.0-60349094391
dc.identifier.wos000264471800001
dc.type.versionpublishedVersion


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