An Improved Model for the Heat-Up Stage of the CAS-OB Process

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Kärnä, Aki Järvinen, Mika Sulasalmi, Petri Visuri, Ville Valtteri Ollila, Seppo Fabritius, Timo 2020-02-03T08:59:15Z 2020-02-03T08:59:15Z 2018-10-01
dc.identifier.citation Kärnä , 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 . en
dc.identifier.issn 1611-3683
dc.identifier.issn 1869-344X
dc.identifier.other PURE UUID: 327c21a6-2667-4a36-834a-a66a34caa663
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
dc.identifier.other PURE FILEURL:
dc.description.abstract Details 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.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Steel Research International en
dc.relation.ispartofseries Volume 89, issue 10 en
dc.rights openAccess en
dc.subject.other Condensed Matter Physics en
dc.subject.other Physical and Theoretical Chemistry en
dc.subject.other Metals and Alloys en
dc.subject.other Materials Chemistry en
dc.subject.other 216 Materials engineering en
dc.subject.other 214 Mechanical engineering en
dc.title An Improved Model for the Heat-Up Stage of the CAS-OB Process en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Oulu
dc.contributor.department Department of Mechanical Engineering
dc.contributor.department SSAB
dc.subject.keyword CAS-OB
dc.subject.keyword CFD
dc.subject.keyword chemical heating
dc.subject.keyword mathematical modeling
dc.subject.keyword top lance
dc.subject.keyword Condensed Matter Physics
dc.subject.keyword Physical and Theoretical Chemistry
dc.subject.keyword Metals and Alloys
dc.subject.keyword Materials Chemistry
dc.subject.keyword 216 Materials engineering
dc.subject.keyword 214 Mechanical engineering
dc.identifier.urn URN:NBN:fi:aalto-202002031965
dc.identifier.doi 10.1002/srin.201800141
dc.type.version acceptedVersion info:eu-repo/date/embargoEnd/2019-10-02

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