Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace

Abstract A computational fluid dynamics (CFD) method is proposed to analyze the operation of a submerged electric arc furnace (SAF) used in ferronickel production. A three-dimensional mathematical model was used for the time-dependent solution of the fluid flow, heat transfer and electromagnetic phe...

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Autores principales:	K. Karalis, N. Karalis, N. Karkalos, Ν. Ntallis, G. S. E. Antipas, A. Xenidis
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eea059ba4de2428d9a15ffd0105300ff
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spelling	oai:doaj.org-article:eea059ba4de2428d9a15ffd0105300ff2021-12-02T16:38:24ZThree-dimensional computational fluid dynamics analysis of an electric submerged arc furnace10.1038/s41598-021-96085-12045-2322https://doaj.org/article/eea059ba4de2428d9a15ffd0105300ff2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96085-1https://doaj.org/toc/2045-2322Abstract A computational fluid dynamics (CFD) method is proposed to analyze the operation of a submerged electric arc furnace (SAF) used in ferronickel production. A three-dimensional mathematical model was used for the time-dependent solution of the fluid flow, heat transfer and electromagnetic phenomena. The slag's physical properties, which play a crucial role in the SAF operation, were previously determined using classical molecular dynamics simulations and empirical relationships. The analysis revealed that the main slag properties affecting SAF operation are density, viscosity and electrical conductivity—the latter two being mutually dependent. The high electrical conductivity values of the slag favor melting via the high Joule heat produced within the slag region. Calculation of the dimensionless Péclet and Reynolds numbers revealed that the slag velocities play a decisive role in heat transfer and further indicate that the slag flow is laminar. The average slag velocity calculated 0.0001 m/s with maxima in the vicinity of the electrodes.K. KaralisN. KaralisN. KarkalosΝ. NtallisG. S. E. AntipasA. XenidisNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q K. Karalis N. Karalis N. Karkalos Ν. Ntallis G. S. E. Antipas A. Xenidis Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
description	Abstract A computational fluid dynamics (CFD) method is proposed to analyze the operation of a submerged electric arc furnace (SAF) used in ferronickel production. A three-dimensional mathematical model was used for the time-dependent solution of the fluid flow, heat transfer and electromagnetic phenomena. The slag's physical properties, which play a crucial role in the SAF operation, were previously determined using classical molecular dynamics simulations and empirical relationships. The analysis revealed that the main slag properties affecting SAF operation are density, viscosity and electrical conductivity—the latter two being mutually dependent. The high electrical conductivity values of the slag favor melting via the high Joule heat produced within the slag region. Calculation of the dimensionless Péclet and Reynolds numbers revealed that the slag velocities play a decisive role in heat transfer and further indicate that the slag flow is laminar. The average slag velocity calculated 0.0001 m/s with maxima in the vicinity of the electrodes.
format	article
author	K. Karalis N. Karalis N. Karkalos Ν. Ntallis G. S. E. Antipas A. Xenidis
author_facet	K. Karalis N. Karalis N. Karkalos Ν. Ntallis G. S. E. Antipas A. Xenidis
author_sort	K. Karalis
title	Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
title_short	Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
title_full	Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
title_fullStr	Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
title_full_unstemmed	Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
title_sort	three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/eea059ba4de2428d9a15ffd0105300ff
work_keys_str_mv	AT kkaralis threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace AT nkaralis threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace AT nkarkalos threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace AT nntallis threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace AT gseantipas threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace AT axenidis threedimensionalcomputationalfluiddynamicsanalysisofanelectricsubmergedarcfurnace
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Three-dimensional computational fluid dynamics analysis of an electric submerged arc furnace

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