Predicting axial pressure profile of a CFB

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dc.authorid0000-0002-4245-7741
dc.contributor.authorGungor, Afsin
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2008
dc.departmentNiğde ÖHÜ
dc.description.abstractThe numerical simulation of CFBs is an important tool in the prediction of its flow behavior. Predicting the axial pressure profile is one of the major difficulties in modeling a CFB. A model using a Particle Based Approach (PBA) is developed to accurately predict the axial pressure profile in CFBs. The simulation model accounts for the axial and radial distribution of voidage and velocity of the gas and solid phases, and for the solids volume fraction and particle size distribution of the solid phase. The model results are compared with and validated against atmospheric cold CFB experimental literature data. Ranges of experimental data used in comparisons are as follows: bed diameter from 0.05 to 0.305 m, bed height between 5 and 15.45 m, mean particle diameter from 76 to 812 mu m, particle density from 189 to 2600 kg/m(3), solid circulation fluxes from 10.03 to 489 kg/m(2) s and gas superficial velocities from 2.71 to 10.68 m/s. The computational results agreed reasonably well with the experimental data. Moreover, both experimental data and model predictions show that the pressure drop profile is affected by the solid circulation flux and superficial velocity values in the riser. The pressure drop increases along the acceleration region as solid circulation flux increases and superficial velocity decreases. (C) 2007 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.cej.2007.11.023
dc.identifier.endpage456
dc.identifier.issn1385-8947
dc.identifier.issue45352
dc.identifier.scopus2-s2.0-44149111132
dc.identifier.scopusqualityQ1
dc.identifier.startpage448
dc.identifier.urihttps://dx.doi.org/10.1016/j.cej.2007.11.023
dc.identifier.urihttps://hdl.handle.net/11480/5227
dc.identifier.volume140
dc.identifier.wosWOS:000257260800048
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorGungor, Afsin
dc.language.isoen
dc.publisherELSEVIER SCIENCE SA
dc.relation.ispartofCHEMICAL ENGINEERING JOURNAL
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectcirculating fluidized bed
dc.subjecthydrodynamic model
dc.subjectpressure drop
dc.subjectacceleration zone
dc.subjectnumerical simulation
dc.titlePredicting axial pressure profile of a CFB
dc.typeArticle

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