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dc.creatorĐuriš, Mihal
dc.creatorKaluđerović-Radoičić, Tatjana
dc.creatorArsenijević, Zorana
dc.creatorGarić Grulović, Radmila
dc.creatorGrbavčić, Željko
dc.date.accessioned2019-01-30T17:50:15Z
dc.date.available2019-01-30T17:50:15Z
dc.date.issued2016
dc.identifier.issn0032-5910
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1945
dc.description.abstractIn this paper, the minimum fluidization velocity and bed expansion of polydisperse sand mixtures fluidized with water were investigated. The fluidization experiments were carried out using 19 different fractions of quartz filtration sand with sieve diameters in the interval d(m) = 0.359 to 2.596 mm. The intercept fluid velocity U-E was determined from the plot of fluid superficial velocity vs. porosity. The results obtained indicated that U-E was about 11% higher than particle terminal velocity U-t, for all of the sand fractions investigated. Based on the experimental data, the new model for bed expansion of quartz filtration sand was proposed. Using the proposed model, the mean absolute deviation in predicting the bed porosity epsilon, for a given superficial velocity U, was 2.66%, while the mean absolute deviation in predicting U at a given epsilon was 8.75%. For the prediction of the minimum fluidization velocity, U-mf, several literature models were tested. The best results were obtained using the Ergun model, with mean absolute deviation in predicting U-mf of 12.42%. A new simple correlation for the prediction of the minimum fluidization velocity U-mf was proposed. The proposed correlation is the function only of the mean sieve diameter of the filtration sand fraction. The mean absolute deviation between the experimental and the predicted values of U-mf was 7.65%.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172022/RS//
dc.rightsrestrictedAccess
dc.sourcePowder Technology
dc.subjectQuartz filtration sanden
dc.subjectLiquid fluidizationen
dc.subjectBed expansionen
dc.subjectExpansion indexen
dc.subjectMinimum fluidization velocityen
dc.titlePrediction of bed expansion of polydisperse quartz sand mixtures fluidized with wateren
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЂуриш, Михал; Гарић Груловић, Радмила; Радоициц, Татјана Калудеровиц; Грбавциц, Зељко; Aрсенијевић, Зорана;
dc.citation.volume289
dc.citation.spage95
dc.citation.epage103
dc.citation.other289: 95-103
dc.citation.rankM21
dc.identifier.doi10.1016/j.powtec.2015.11.047
dc.identifier.rcubConv_3489
dc.identifier.scopus2-s2.0-84948799422
dc.identifier.wos000370095400014
dc.type.versionpublishedVersion


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