Browsing NTNU Open by Author "Magnusson, Thordur"
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Dynamic Current and Power Distributions in a Submerged Arc Furnace
Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun (Journal article; Peer reviewed, 2019)Most submerged arc furnaces used for the production of ferroalloys run on three-phase alternating current. This affects the electrical operation of the furnace and thus it is of interest to study alternating current ... -
Dynamic Current Distribution in the Electrodes of Submerged Arc Furnace Using Scalar and Vector Potentials
Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Saevarsdottir, Gudrun (Journal article; Peer reviewed, 2018)This work presents computations of electric current distributions inside an industrial submerged arc furnace. A 3D model has been developed in ANSYS Fluent that solves Maxwell’s equations based on scalar and vector potentials ... -
The Effect of Electrode Movements on Electrical Characteristics of a Submerged Arc Furnace
Tesfahunegn, Yonatan; Magnusson, Thordur; Tangstad, Merete; Sævarsdottir, Gudrun (Peer reviewed; Journal article, 2021)This work discusses the effect of electrode position on the electrical characteristics of a submerged arc furnace. A 3D model has been developed in ANSYS Maxwell using an eddy current solver that considers alternating ... -
Reducing the Carbon Footprint: Primary Production of Aluminum and Silicon with Changing Energy Systems
Saevarsdottir, Gudrun; Magnusson, Thordur; Kvande, Halvor (Peer reviewed; Journal article, 2021)The world now pushes for a low-carbon future, and international goals for greenhouse gas emission reductions have been set. Industrial processes, including metallurgical processes, make up more than a fifth of the total ...