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Mathematical Modeling of Postcombustion in an Electric Arc Furnace (EAF)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.ORCID iD: 0000-0003-4384-7984
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.ORCID iD: 0000-0001-9775-0382
2019 (English)In: METALS, ISSN 2075-4701, Vol. 9, no 5, article id 547Article in journal (Refereed) Published
Abstract [en]

Numerical modeling was used to study the capability of postcombustion in an electric arc furnace (EAF) equipped with virtual lance burners. The CO flow rate at the molten bath surface was estimated using the off-gas data obtained close to the outlet of an EAF. Then, the effect of the secondary oxygen flow rate on postcombustion was studied. The results show a CO flow rate of 0.6 kgs(-1) and 0.8 kgs(-1) for operation modes of burner and burner + lancing. Increase of the secondary oxygen flow rates of 60% and 70% result in 17% and 7% increase in the postcombustion ratio (PCR) for the burner and burner lancing modes, respectively.

Place, publisher, year, edition, pages
MDPI , 2019. Vol. 9, no 5, article id 547
Keywords [en]
EAF, postcombustion, CFD
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-257587DOI: 10.3390/met9050547ISI: 000478818700065Scopus ID: 2-s2.0-85066731085OAI: oai:DiVA.org:kth-257587DiVA, id: diva2:1352899
Note

QC 20190920

Available from: 2019-09-20 Created: 2019-09-20 Last updated: 2019-09-20Bibliographically approved

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Ersson, MikaelJönsson, Pär

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