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Article: Particle transport in a bottom-feed separation vessel

TitleParticle transport in a bottom-feed separation vessel
Authors
KeywordsCfd Modelling
Drift-Flux Model
Finite-Volume Method
Multi-Phase Flow
Particle Separation
Issue Date1998
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/apm
Citation
Applied Mathematical Modelling, 1998, v. 22 n. 12, p. 1023-1036 How to Cite?
AbstractA two-dimensional, axisymmetric numerical model of particle separation in a bottom-feed separation vessel is presented. The model includes six separate particle classes and assumes that the settling velocity of each particle class is sufficiently small when compared to the high inflow turbulence levels that the effect of the particles on turbulence can be neglected. Low particle settling velocities coupled with low particle volume fractions allows application of a drift-flux multi-phase model. The comparison between numerical results and measured plant data is in good agreement for overflow of all particle classes. Results of simulations show that bottom feeding results in a negatively buoyant, particle-laden jet being formed in the core of the vessel. The fraction of large particles that is carried out through the overflow is found to be critically dependent on the inlet velocity. The most effective way to reduce carry-over of large particles at the same time as maintaining through-put is to increase the diameter of the inlet feed pipe. | A two-dimensional, axisymmetric numerical model of particle separation in a bottom-feed separation vessel is presented. The model includes six separate particle classes and assumes that the settling velocity of each particle class is sufficiently small when compared to the high inflow turbulence levels that the effect of the particles on turbulence can be neglected. Low particle settling velocities coupled with low particle volume fractions allows application of a drift-flux multi-phase model. The comparison between numerical results and measured plant data is in good agreement for overflow of all particle classes. Results of simulations show that bottom feeding results in a negatively buoyant, particle-laden jet being formed in the core of the vessel. The fraction of large particles that is carried out through the overflow is found to be critically dependent on the inlet velocity. The most effective way to reduce carry-over of large particles at the same time as maintaining through-put is to increase the diameter of the inlet feed pipe.
Persistent Identifierhttp://hdl.handle.net/10722/156495
ISSN
2015 Impact Factor: 2.291
2015 SCImago Journal Rankings: 1.318
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Yen_US
dc.contributor.authorRudman, Men_US
dc.contributor.authorBrown, Gen_US
dc.date.accessioned2012-08-08T08:42:40Z-
dc.date.available2012-08-08T08:42:40Z-
dc.date.issued1998en_US
dc.identifier.citationApplied Mathematical Modelling, 1998, v. 22 n. 12, p. 1023-1036en_US
dc.identifier.issn0307-904Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/156495-
dc.description.abstractA two-dimensional, axisymmetric numerical model of particle separation in a bottom-feed separation vessel is presented. The model includes six separate particle classes and assumes that the settling velocity of each particle class is sufficiently small when compared to the high inflow turbulence levels that the effect of the particles on turbulence can be neglected. Low particle settling velocities coupled with low particle volume fractions allows application of a drift-flux multi-phase model. The comparison between numerical results and measured plant data is in good agreement for overflow of all particle classes. Results of simulations show that bottom feeding results in a negatively buoyant, particle-laden jet being formed in the core of the vessel. The fraction of large particles that is carried out through the overflow is found to be critically dependent on the inlet velocity. The most effective way to reduce carry-over of large particles at the same time as maintaining through-put is to increase the diameter of the inlet feed pipe. | A two-dimensional, axisymmetric numerical model of particle separation in a bottom-feed separation vessel is presented. The model includes six separate particle classes and assumes that the settling velocity of each particle class is sufficiently small when compared to the high inflow turbulence levels that the effect of the particles on turbulence can be neglected. Low particle settling velocities coupled with low particle volume fractions allows application of a drift-flux multi-phase model. The comparison between numerical results and measured plant data is in good agreement for overflow of all particle classes. Results of simulations show that bottom feeding results in a negatively buoyant, particle-laden jet being formed in the core of the vessel. The fraction of large particles that is carried out through the overflow is found to be critically dependent on the inlet velocity. The most effective way to reduce carry-over of large particles at the same time as maintaining through-put is to increase the diameter of the inlet feed pipe.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/apmen_US
dc.relation.ispartofApplied Mathematical Modellingen_US
dc.subjectCfd Modellingen_US
dc.subjectDrift-Flux Modelen_US
dc.subjectFinite-Volume Methoden_US
dc.subjectMulti-Phase Flowen_US
dc.subjectParticle Separationen_US
dc.titleParticle transport in a bottom-feed separation vesselen_US
dc.typeArticleen_US
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_US
dc.identifier.authorityLi, Y=rp00151en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0307-904X(98)10035-5en_US
dc.identifier.scopuseid_2-s2.0-0032443307en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032443307&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume22en_US
dc.identifier.issue12en_US
dc.identifier.spage1023en_US
dc.identifier.epage1036en_US
dc.identifier.isiWOS:000077070900006-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, Y=7502094052en_US
dc.identifier.scopusauthoridRudman, M=7004524067en_US
dc.identifier.scopusauthoridBrown, G=8501937700en_US

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