Mathematical Model Validation of Aluminium Electrolysis Cells at DUBAL

Zarouni, Abdalla; Mishra, Lalit; Bastaki, Marwan; Jasmi, Amal Al; Arkhipov, Alexander; Potocnik, Vinko

doi:10.1002/9781118663189.ch102

Cited by 12 publications

(5 citation statements)

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“…The third measurement series were performed to obtain the all anode bottom profile overall distribution for the full cell. It is well recognised that the 'dome' shape of the magnetically compressed liquid metal leads to the gradual selective burnout of the anode bottom, so that the local ACD remains constant [3,4,12]. The series of measurements at Rusal for 7 cells used the freshly extracted anodes from a stable operating cells.…”

Section: The Comparison Of the Measurements And Numerical Resultsmentioning

confidence: 99%

“…The velocity field has been successfully modelled and validated against experiments using the ESTER/PHOENICS [3,7]. Similar validation of the velocity fields, magnetic fields, electric current distribution and the wave oscillation frequencies were achieved using the specialised package MHD-VALDIS [3,8,9] using more streamlined approach to save time and effort for the commercial implementation. This software is based on the full MHD model of the electrolysis cell applied to a particular commercial cell replicated in the model using the specialised input suitable for fast implementation.…”

Section: Introductionmentioning

confidence: 85%

“…The advantage of specialised commercial software packages is that they are being continuously developed and maintained to meet the interests of the aluminium industry. For instance, the universal package ANSYS is successfully used for the thermo-electric and mechanical modelling of the reduction cells [2,3]. There are attempts to use the ANSYS/CFX package for the hydrodynamic and magnetic simulations [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…There are attempts to use the ANSYS/CFX package for the hydrodynamic and magnetic simulations [4][5][6]. The velocity field has been successfully modelled and validated against experiments using the ESTER/PHOENICS [3,7]. Similar validation of the velocity fields, magnetic fields, electric current distribution and the wave oscillation frequencies were achieved using the specialised package MHD-VALDIS [3,8,9] using more streamlined approach to save time and effort for the commercial implementation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Anode Bottom Burnout Shape and Velocity Field Investigation in a High Amperage Electrolysis Cell

Bojarevics

Radionov

Tretiyakov

2018

The Minerals, Metals &Amp; Materials Series

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Long term burnout shape of the anode bottom is believed to reflect the quasi-stationary liquid metal interface dome-shaped deformation. The shape profiles and their interplay affect the MHD stability, the velocity fields, set up of new anodes and electrical efficiency of the cell. Spent prebake anode bottom profiles were systematically measured at Rusal 309 kA cell to obtain the overall view of the liquid metal deformation. The magnetic field distribution and velocities of liquid metal flow were measured in order to obtain a more complete characterization of the cell. The results are compared to the modelling results using the specialised MHD-VALDIS software giving the insight to the cell dynamics.

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Section: The Comparison Of the Measurements And Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Anode Bottom Burnout Shape and Velocity Field Investigation in a High Amperage Electrolysis Cell

Bojarevics

Radionov

Tretiyakov

2018

The Minerals, Metals &Amp; Materials Series

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“…The fully coupled MHD solution for the waves and fluid flow is validated extensively for the case of a single interface in the aluminium electrolysis cells. The solution is compared to measurements of the velocity fields [7,8] and the wave frequencies [6]. The computed and measured wave frequencies are similar to the typical gravity wave frequencies, however the exact values are shifted due to the MHD interaction.…”

Section: Problem Set Up and Governing Equationsmentioning

confidence: 88%

Large Scale Liquid Metal Batteries

Bojarevics¹,

Tucs²

2017

Proceedings of the VIII International Scientific Colloquium "Modelling for Materials Processing"

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Liquid metal batteries are possible candidates for large scale energy storage offering a possible breakthrough of intermittent wind and solar energy exploitations. The major concern over their practical implementation is the operation at elevated temperatures and sensitivity to liquid motion. The concept of liquid metal battery bears a close similarity to aluminium electrolytic production cells. The two liquid layer MHD effects can be projected to the three liquid layer self-segregated structure of the batteries. This paper presents numerical models for the three density-stratified electrically conductive liquid layers using 3D and shallow layer approximation accounting for specific MHD effects during periods of battery activity. It is demonstrated that a stable operation of these batteries can be achieved if reusing an infrastructure of existing aluminium electrolysis pot lines. The basic principles of the MHD processes in the cells are illustrated by the numerical example cases.

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