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Određivanje graničnih separacionih efekata pri membranskoj separaciji vazduha primenom modela idealnog mešanja i modela unakrsnog toka

dc.creatorVladisavljević, Goran
dc.creatorRajković, Miloš
dc.date.accessioned2020-12-17T17:40:22Z
dc.date.available2020-12-17T17:40:22Z
dc.date.issued2000
dc.identifier.issn1450-7188
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/174
dc.description.abstractThe aim of this work is to investigate the single-stage separation of atmospheric air through silicone rubber membrane assuming cross-flow and ideal-mixing pattern. The novel graphical procedure for obtaining the permeate and retentate compositions as a function of permeate to retentate pressure ratio, γ, membrane selectivity, α*and fraction of feed permeated, θ was developed. The maximum oxygen concentration in the permeate stream was found to be 37 mol % for both models. However, the cross-flow pattern predicts the 100 % pure nitrogen to be obtained in the retentate stream at the q value of unity. In most cases, the cross-flow pattern is preferred when the production of nitrogen-enriched air is concerned, whereas the ideal-mixing pattern is preferred when the oxygen-enriched air is the desirable product. The membrane area requirements are higher for cross-flow pattern, and the deviations between the two models presented here are more pronounced at higher fractions of feed permeated.en
dc.description.abstractU raduje izvršena numerička analiza procesa membranske separacije vazduha pomoću mem­brane od silikonske gume, primenom modela idealnog mešanja i modela unakrsnog toka. Predložen je nov grafički postupak određivanja sastava permeata i retentata u funkciji od odnosa pritisaka permeata i retentata, γ, selektivnosti membrane, α*i stepena permeacije, θ, zasnivan na primeni ravnotežnog xe - ye dijagrama. Rezultati ukazuju da model unakrsnog toka omogućava bolje separacione efekte od modela idealnog mešanja, posebno sa aspekta dobijanja vazduha obogaćenog azotom. Međutim, potrebna membranska površina je pri istom stepenu permeacije veća pri unakrsnom toku faza nego pri idealnom mešanju. Oba modela daju iste rezultate pri nultom stepenu permeacije.sr
dc.publisherUniverzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceActa periodica technologica
dc.subjectmembranasr
dc.subjectseparacija vazduhasr
dc.subjectsilikonska gumasr
dc.subjectmodel idealnog mešanjasr
dc.subjectmodel unakrsnog tokasr
dc.titleDetermination of limiting separation effects in membrane based air separation for perfectly mixed and cross flow patternsen
dc.titleOdređivanje graničnih separacionih efekata pri membranskoj separaciji vazduha primenom modela idealnog mešanja i modela unakrsnog tokasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage430
dc.citation.issue31
dc.citation.other(31): 423-430
dc.citation.spage423
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/613/171.pdf
dc.identifier.rcubconv_1612
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_174
dc.type.versionpublishedVersion


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