FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W275099358> ?p ?o ?g. }

• W275099358 endingPage "82" @default.
• W275099358 startingPage "69" @default.
• W275099358 abstract "The traditional approach to modeling ladle processes involvea critical survey of the thermodynamic aspects of the processincluding mass and heat balantes at the macroscopic level. Onthe other hand, the macrokinetics, specific to the reactor haveoften been studied separately, using computational fluiddynamits. Over the years, it has been realized that traditionalmethods have obvious limitations in providing an understandingof heterogeneous processes. In a long range perspective, acomplete description of ladle metallurgy and a fundamentalunderstarrding of the underlying process phenomena require aconsideration of all the individual reactions involved andtheir interrelations. This, in tum, clearly requiressimultaneous solution of thermodynamics, heat and fluid flow.The salient features of the present study are the considerationof fundamental transport equations and establishedthermodynamic relationships so that mathematital models takinginto account both thermodynamics and fluid flow could beachieved. A technique to' incorporate the slag phase in two-phasefluid-flow models for ladle treatment is introduced in thisthesis. This development enabled, for the first time,predictions of fluid flow conditions in the important steelklagregion. Good agreement is shown between predictions andphysical modeling reported in literature, regarding thecriteria for initiation of entrapment of a lighter phase into aheavier phase. Furthermore, a method to combine fluid dynamits andthermodynamics to model slag/metal reactions is introduced andis demonstrated in the case of sulphur refining during gasstirring. By considering the volume of mixing between slag andmetal and the thermodynamic equilibrium in the two-phase zone,the calculations of interfacial area and the mass-transfercoeffcients for different elements are avoided. In this way,the combined effect of fluid-flow and thermodynamic conditionscould be predicted from fundamental transport equations.Comparison between predicted data and plant data demonstratesthat the method could be used to predict the desulphurizationwith an acceptable accuracy. A new method to model ladle processes involving gas-liquidreactions is also introduced in this thesis. In the cases wherethe interfacial reaction and mass transfer in the gas-phase arerapid, the overall mass transfer resistance could be expressedby the mass-transfer in the melt. The hydrogen refinementprocess during vacuum degassing in an ASEA-SKE ladle furnacehas been taken as an example. The predictions have beencompared with data from production scale experiments carriedout at Ovako Steel. Good agreement between the calculatedhydrogen toncentrations and the hydrogen tontent in the sampletaken after vacuum degassing substantiates the feasibility ofthis technique. Key words:Slag-Metal Reactions, Metal-Gas Reactions,Ladle Metallurgy, Sulphur Refining, Hydrogen Refining, VacuumDegassing, Combined Kinetics and Thermodynamics, 3-Phase Model,Gas Stirring, Modeling, CAS-OB, CFD" @default.
• W275099358 created "2016-06-24" @default.
• W275099358 creator A5003865365 @default.
• W275099358 creator A5004707383 @default.
• W275099358 creator A5005394047 @default.
• W275099358 creator A5009376347 @default.
• W275099358 date "1997-01-01" @default.
• W275099358 modified "2023-09-27" @default.
• W275099358 title "Three-phase (steel, slag, gas) modeling of the CAS-OB process." @default.
• W275099358 hasPublicationYear "1997" @default.
• W275099358 type Work @default.
• W275099358 sameAs 275099358 @default.
• W275099358 citedByCount "0" @default.
• W275099358 crossrefType "journal-article" @default.
• W275099358 hasAuthorship W275099358A5003865365 @default.
• W275099358 hasAuthorship W275099358A5004707383 @default.
• W275099358 hasAuthorship W275099358A5005394047 @default.
• W275099358 hasAuthorship W275099358A5009376347 @default.
• W275099358 hasConcept C121332964 @default.
• W275099358 hasConcept C159048435 @default.
• W275099358 hasConcept C178790620 @default.
• W275099358 hasConcept C185592680 @default.
• W275099358 hasConcept C191897082 @default.
• W275099358 hasConcept C192562407 @default.
• W275099358 hasConcept C2780146601 @default.
• W275099358 hasConcept C38349280 @default.
• W275099358 hasConcept C44280652 @default.
• W275099358 hasConcept C50517652 @default.
• W275099358 hasConcept C57879066 @default.
• W275099358 hasConcept C90278072 @default.
• W275099358 hasConcept C97355855 @default.
• W275099358 hasConceptScore W275099358C121332964 @default.
• W275099358 hasConceptScore W275099358C159048435 @default.
• W275099358 hasConceptScore W275099358C178790620 @default.
• W275099358 hasConceptScore W275099358C185592680 @default.
• W275099358 hasConceptScore W275099358C191897082 @default.
• W275099358 hasConceptScore W275099358C192562407 @default.
• W275099358 hasConceptScore W275099358C2780146601 @default.
• W275099358 hasConceptScore W275099358C38349280 @default.
• W275099358 hasConceptScore W275099358C44280652 @default.
• W275099358 hasConceptScore W275099358C50517652 @default.
• W275099358 hasConceptScore W275099358C57879066 @default.
• W275099358 hasConceptScore W275099358C90278072 @default.
• W275099358 hasConceptScore W275099358C97355855 @default.
• W275099358 hasLocation W2750993581 @default.
• W275099358 hasOpenAccess W275099358 @default.
• W275099358 hasPrimaryLocation W2750993581 @default.
• W275099358 hasRelatedWork W2117737395 @default.
• W275099358 hasRelatedWork W2274492776 @default.
• W275099358 hasRelatedWork W2314492630 @default.
• W275099358 hasRelatedWork W2321646780 @default.
• W275099358 hasRelatedWork W2596260479 @default.
• W275099358 hasRelatedWork W2886870158 @default.
• W275099358 hasRelatedWork W2895576526 @default.
• W275099358 hasRelatedWork W2903431264 @default.
• W275099358 hasRelatedWork W2914408186 @default.
• W275099358 hasRelatedWork W2927838971 @default.
• W275099358 hasRelatedWork W2933340298 @default.
• W275099358 hasRelatedWork W3008580751 @default.
• W275099358 hasRelatedWork W3047853143 @default.
• W275099358 hasRelatedWork W3114614252 @default.
• W275099358 hasRelatedWork W3120061486 @default.
• W275099358 hasRelatedWork W3146888490 @default.
• W275099358 hasRelatedWork W56013328 @default.
• W275099358 hasRelatedWork W69915287 @default.
• W275099358 hasRelatedWork W2463055552 @default.
• W275099358 hasRelatedWork W2932803555 @default.
• W275099358 hasVolume "80" @default.
• W275099358 isParatext "false" @default.
• W275099358 isRetracted "false" @default.
• W275099358 magId "275099358" @default.
• W275099358 workType "article" @default.