An Efficient Simulation Method for Current and Power distribution in 3-Phase Electrical Smelting Furnaces**This paper is published as part of the project Electrical Conditions and their Process Interactions in High Temperature Metallurgical Reactors (ElMet), with financial support from The Research Council of Norway and the companies Alcoa, Elkem and Eramet.

Halvorsen, Svenn Anton; Olsen, Henrik Andre; Fromreide, Mads

doi:10.1016/j.ifacol.2016.10.115

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…[4][5][6][7][8] Most published studies for this pilot furnace use alternating currents, while we have assumed direct current. This approximation is valid for small furnaces, 32,33 which is consistent with an experimental ratio of active to apparent power (cos /) close to one. 7,8 For simplicity, the calculation of the electrical conditions is restricted to the electrodes and charge domains.…”

Section: Electrostaticssupporting

confidence: 83%

An Overall Furnace Model for the Silicomanganese Process

Sparta

Risinggård

Einarsrud

et al. 2021

JOM

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Controlling and optimizing smelting processes in submerged-arc furnaces are complicated by the limited amount of information available regarding the internal conditions. Computer models can help to bridge this knowledge gap. Due to the process complexity, computer models are commonly restricted to electrical conditions, thermal conditions, or chemical reactions, for instance. We have developed an overall model for a pilot-scale silicomanganese furnace that simultaneously considers electrical and thermal conditions, process chemistry, and flow of solid and liquid substances. To the best of our knowledge, this is the first comprehensive silicomanganese furnace model. The model has been compared to experimental data. Using information about the inner state of the furnace provided by the model, we are able to predict and explain an increase in temperature during over-coking as well as changes in the product compositions.

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Section: Electrostaticssupporting

confidence: 83%

An Overall Furnace Model for the Silicomanganese Process

Sparta

Risinggård

Einarsrud

et al. 2021

JOM

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“…This approach is valid as long as electromagnetic induction can be neglected. [27] Moreover Bezuidenhout et al developed a 3D computational fluid dynamic model to investigate the internal dynamics of an electrical furnace as used for the smelting of Platinum Group Metal concentrates. [28] Toh et al used Maxwell's equations in connection with a Finite Volume Method approach to model steel-making process.…”

Section: Introductionmentioning

confidence: 99%

Metamodeling of the Electrical Conditions in Submerged Arc Furnaces

Sparta

Varagnolo

Stråbø

et al. 2021

Metall Mater Trans B

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Physics-based Finite Element Methods models can be used to investigate the electrical conditions in submerged arc furnaces (SAFs). However, their explicit solution may be very demanding in terms of time and computational resources. This makes these models difficult to employ during control operations and in fast prototyping. To obviate these inconveniences, we developed metamodels that are grounded on the physics-based model. In this context, a metamodel is a surrogate of an original model obtained using statistical analysis tools to determine approximate input–output relationships in a database of simulations from the original model. The metamodels for the SAF electrical conditions are shown to retain the same generalization capabilities as the original model while being computationally lightweight.

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Mathematical Models for Electromagnetic Conditions in Submerged Arc Furnaces

Halvorsen

Fromreide

Sparta

et al. 2022

Mathematics in Industry

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Cited by 9 publications

References 4 publications

An Overall Furnace Model for the Silicomanganese Process

An Overall Furnace Model for the Silicomanganese Process

Metamodeling of the Electrical Conditions in Submerged Arc Furnaces

Mathematical Models for Electromagnetic Conditions in Submerged Arc Furnaces

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