Show simple item record

Prenos mase fluid-uronjeni objekat u pakovanim i fluidizovanim slojevima tečnost-čestice

dc.creatorBošković-Vragolović, Nevenka
dc.creatorBrzić, Danica
dc.creatorGrbavčić, Željko
dc.date.accessioned2021-03-10T10:24:10Z
dc.date.available2021-03-10T10:24:10Z
dc.date.issued2005
dc.identifier.issn0352-5139
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/794
dc.description.abstractThe mass transfer coefficient between fluid and an immersed sphere in liquid packed and fluidized beds of inert spherical particles have been studied experimentally using a column 40 mm in diameter. The mass transfer data were obtained by studying the transfer of benzoic acid from the immersed sphere to flowing water using the dissolution method. In all runs, the mass transfer rates were determined in the presence of inert glass particles 0.50-2.98 mm in diameter. The influence of different parameters, such as: liquid velocity, particles size and bed void age, on the mass transfer in packed and fluidized beds is presented. The obtained experimental data for mass transfer in the packed and particulate fluidized bed were correlated by a single correlation, thus confirming the similarity between the two systems.en
dc.description.abstractU ovom radu je eksperimentalno ispitivan prelaz mase između uronjene sfere i fluida u prisustvu pakovanih i fluidizovanih čestica. Za određivanje koeficijenta prelaza mase korišćena je metoda praćenja rastvaranja slabo rastvorne supstance- benzoeve kiseline u vodi. Korišćena je kolona prečnika 40 mm, uronjena sfera prečnika 21 mm, a pakovane i fluidizovane slojeve su činile staklene sfere prečnika 0,5-2,98 mm. Ispitivanja u pakovanim slojevima izvršena su u sistemima sa različitim pakovanjima - retkom i gustom. Prikazani su uticaji različitih parametara, kao što su brzina fluida, veličina čestica i poroznost slojeva na koeficijent prelaza mase. Pokazane su razlike i sličnosti u prenosu mase kada su u sloju prisutne nepokretne i fluidizovane čestice. Data je završna eksperimentalna korelacija koja je zajednička i za pakovane i za fluidizovane slojeve. Korelacija je data kao veza bezdimenzionih grupa Rep/(1-ε)i jDε koje nisu tipične za korelisanje podataka u fludizovanim slojevima. Ova korelacija ukazuje da postoji sličnost mehanizama prenosa mase u pakovanim i partikulativno fludizovanim slojevima.sr
dc.publisherSerbian Chemical Society, Belgrade
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceJournal of the Serbian Chemical Society
dc.subjectmass transferen
dc.subjectpacked bedsen
dc.subjectparticulate fludized bedsen
dc.subjectcorrelationen
dc.titleMass transfer between a fluid and an immersed object in liquid-solid packed and fluidized bedsen
dc.titlePrenos mase fluid-uronjeni objekat u pakovanim i fluidizovanim slojevima tečnost-česticesr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage1379
dc.citation.issue11
dc.citation.other70(11): 1373-1379
dc.citation.rankM23
dc.citation.spage1373
dc.citation.volume70
dc.identifier.rcubconv_578
dc.identifier.scopus2-s2.0-31544444462
dc.identifier.wos000234277000015
dc.type.versionpublishedVersion


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record