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dc.creatorNikačević, Nikola
dc.creatorThielen, L.
dc.creatorTwerda, A.
dc.creatorVan den Hof, P. M. J.
dc.date.accessioned2021-03-10T12:45:04Z
dc.date.available2021-03-10T12:45:04Z
dc.date.issued2015
dc.identifier.issn1451-9372
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/2989
dc.description.abstractFlow pattern analysis in a spiral Helix reactor is conducted, for the application in commercial surfactant production. Step change response curves (SCR) were obtained from numerical tracer experiments by three-dimensional computational fluid dynamics (CFD) simulations. Non-reactive flow is simulated, though viscosity is treated as variable in the direction of flow, as it increases during the reaction. The design and operating parameters (reactor diameter, number of coils and inlet velocity) are varied in CFD simulations, in order to examine the effects on the flow pattern. Given that 30 simulations are not practical for fast computations needed for optimization, scale-up and control, CFD flow model is reduced to one-dimensional axial dispersion (AD) model with spatially variable dispersion coefficient. The dimensionless dispersion. coefficient (Pe) is estimated under different conditions and results are analyzed. Finally, a correlation relating the Pe number with the Reynolds number and number of coils from the reactor entrance is proposed for the particular reactor application and conditions.en
dc.publisherSavez hemijskih inženjera, Beograd
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceChemical Industry & Chemical Engineering Quarterly
dc.subjectCFD simulationen
dc.subjectflow pattern analysisen
dc.subjectaxial dispersion modelen
dc.subjectprocess intensificationen
dc.subjectbatch to continuousen
dc.titleCfd analysis and flow model reduction for surfactant production in helix reactoren
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage44
dc.citation.issue1
dc.citation.other21(1): 35-44
dc.citation.rankM23
dc.citation.spage35
dc.citation.volume21
dc.identifier.doi10.2298/CICEQ131010003N
dc.identifier.rcubconv_4728
dc.identifier.scopus2-s2.0-84946178125
dc.identifier.wos000354755400004
dc.type.versionpublishedVersion


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