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https://doi.org/10.21256/zhaw-3694| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Model based analysis of forced and natural convection effects in an electrochemical cell |
| Authors: | Brunner, Daniel Boldrini, Marlon Boiger, Gernot Kurt |
| DOI: | 10.21256/zhaw-3694 10.21152/1750-9548.11.1.97 |
| Published in: | The International Journal of Multiphysics |
| Volume(Issue): | 11 |
| Issue: | 1 |
| Page(s): | 97 |
| Pages to: | 111 |
| Issue Date: | 2017 |
| Publisher / Ed. Institution: | International Society of Multiphysics |
| ISSN: | 1750-9548 2048-3961 |
| Language: | German |
| Subjects: | OpenFoam; Electrolysis; CFD; Copper raffination |
| Subject (DDC): | 540: Chemistry |
| Abstract: | High purity copper, suitable for electrical applications, can only be obtained by electro-winning. The hallmark of this process is its self-induced natural convection through density variations of the electrolyte at both anode and cathode. In order to accelerate the process, first its full dynamic complexity needs to be understood. Thus, an OpenFoam®-based 2D model has been created. This finite-volume multiphysics approach solves the laminar momentum and copper-ion species conservation equations, as well as local copper-ion conversion kinetics. It uses a Boussinesq approximation to simulate the species-momentum coupling, namely natural draft forces induced by variations of the spatial copper concentration within the fluid. The model shows good agreement with benchmark-cases of real-life electrochemical cells found in literature. An additional flow was imposed at the bottom of a small-scale electrochemical cell in order to increase the ionic transport and thereby increase the overall performance of the cell. In a small-scale electrochemical cell in strictly laminar flow, the overall performance could be increased and stratification decreased. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/6199 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Appears in collections: | Publikationen School of Engineering |
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| Model based analysis of forced and natural convection effects in an electrochemical cell.pdf | 748.78 kB | Adobe PDF |  View/Open |
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Brunner, D., Boldrini, M., & Boiger, G. K. (2017). Model based analysis of forced and natural convection effects in an electrochemical cell. The International Journal of Multiphysics, 11(1), 97–111. https://doi.org/10.21256/zhaw-3694
Brunner, D., Boldrini, M. and Boiger, G.K. (2017) ‘Model based analysis of forced and natural convection effects in an electrochemical cell’, The International Journal of Multiphysics, 11(1), pp. 97–111. Available at: https://doi.org/10.21256/zhaw-3694.
D. Brunner, M. Boldrini, and G. K. Boiger, “Model based analysis of forced and natural convection effects in an electrochemical cell,” The International Journal of Multiphysics, vol. 11, no. 1, pp. 97–111, 2017, doi: 10.21256/zhaw-3694.
BRUNNER, Daniel, Marlon BOLDRINI und Gernot Kurt BOIGER, 2017. Model based analysis of forced and natural convection effects in an electrochemical cell. The International Journal of Multiphysics. 2017. Bd. 11, Nr. 1, S. 97–111. DOI 10.21256/zhaw-3694
Brunner, Daniel, Marlon Boldrini, and Gernot Kurt Boiger. 2017. “Model based analysis of forced and natural convection effects in an electrochemical cell.” The International Journal of Multiphysics 11 (1): 97–111. https://doi.org/10.21256/zhaw-3694.
Brunner, Daniel, et al. “Model based analysis of forced and natural convection effects in an electrochemical cell.” The International Journal of Multiphysics, vol. 11, no. 1, 2017, pp. 97–111, https://doi.org/10.21256/zhaw-3694.
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