An Improved Model for the Heat-Up Stage of the CAS-OB Process: Development and Validation

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKärnä, Akien_US
dc.contributor.authorJärvinen, Mikaen_US
dc.contributor.authorSulasalmi, Petrien_US
dc.contributor.authorVisuri, Ville Valtterien_US
dc.contributor.authorOllila, Seppoen_US
dc.contributor.authorFabritius, Timoen_US
dc.contributor.departmentDepartment of Mechanical Engineeringen
dc.contributor.groupauthorEnergy Conversionen
dc.contributor.organizationUniversity of Ouluen_US
dc.contributor.organizationSSAB Europe Oyen_US
dc.date.accessioned2020-02-03T08:59:15Z
dc.date.available2020-02-03T08:59:15Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2019-10-02en_US
dc.date.issued2018-10-01en_US
dc.description.abstractDetails of chemical heating in the CAS-OB process are not known exactly, making a computational model valuable in process development and control. A phenomena-based numerical model of the CAS-OB heating stage is presented. Chemical equilibrium at reaction surfaces is assumed to be limited by mass transfer. Making use of a law of mass action based kinetic approach, reactions, and mass transfer rates are solved simultaneously. Computational fluid dynamics is used to derive heat and mass transfer coefficients, which are then used in our model, consisting of only a few computational nodes. The model includes steel melt, slag, and gas phases, bell, and ladle structures, and three reaction fronts. Radiation, conduction, and convection heat transfer are solved in the system. The model outputs temperatures and chemical composition of the system, and the results are validated with industrial data from two measurement campaigns.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKärnä, A, Järvinen, M, Sulasalmi, P, Visuri, V V, Ollila, S & Fabritius, T 2018, ' An Improved Model for the Heat-Up Stage of the CAS-OB Process : Development and Validation ', Steel Research International, vol. 89, no. 10, 1800141 . https://doi.org/10.1002/srin.201800141en
dc.identifier.doi10.1002/srin.201800141en_US
dc.identifier.issn1611-3683
dc.identifier.issn1869-344X
dc.identifier.otherPURE UUID: 327c21a6-2667-4a36-834a-a66a34caa663en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/327c21a6-2667-4a36-834a-a66a34caa663en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85050546449&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/40473122/ENG_Karna_et_al_An_improved_model_Steel_Research_International.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/42886
dc.identifier.urnURN:NBN:fi:aalto-202002031965
dc.language.isoenen
dc.publisherVERLAG STAHLEISEN MBH
dc.relation.ispartofseriesSteel Research Internationalen
dc.relation.ispartofseriesVolume 89, issue 10en
dc.rightsopenAccessen
dc.subject.keywordCAS-OBen_US
dc.subject.keywordCFDen_US
dc.subject.keywordchemical heatingen_US
dc.subject.keywordmathematical modelingen_US
dc.subject.keywordtop lanceen_US
dc.titleAn Improved Model for the Heat-Up Stage of the CAS-OB Process: Development and Validationen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionacceptedVersion
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