Full Article - Open Access.

Idioma principal


Jeddi, E.; Marceau, D.; Kiss, L. I.; St-Georges, Lyne; Laroche, D.; Hacini, L.;

Full Article:

In today’s context, aluminum producers strive to improve their position regarding energy consumption and production costs. To do so, mathematical modeling offers a good way to study the behavior of the cell during its life. In this paper, a fully-coupled, thermoelectro- mechanical (TEM) model of a whole hexapod anode assembly is presented. The parametric finite element (FE) model was developed using APDL™ (ANSYS® Parametric Design Language) and was solved with a FESh++ TEM application to simulate the thermal and electrical effects of the reduction process on the anode assembly. A half block submodel of the full anode assembly model was used for the analysis in order to achieve a better understanding of the system and to evaluate the hypothesis of lowering the anodic voltage drop in the anode assembly through a simple change in the stub diameter. After calibration with the experimental results, sensitivity analysis (SA) was carried out to investigate the impact of changes of some critical parameters on the initial air gap at the cast iron to carbon interface and consequently on the total voltage drop in the system. These critical parameters were: effective stub temperature at cast iron solidification, stub diameter and coefficient of thermal expansion (CTE) which showed they have marginal or remarkable impact on the total voltage drop depending on the operating temperature.

Full Article:

Palavras-chave: Aluminum Production, Anode Assembly, Voltage Drop, Electrical Contact Resistance, Numerical Modeling and Simulation, Finite Elements Method.,


DOI: 10.5151/meceng-wccm2012-18265

Referências bibliográficas
  • [1] L. St-Georges, L. I. Kiss, M. Rouleau, Evaluation of Contact Resistance in Electrodes of Hall-Heroult Process, TMS Light Metals 2009, Pages 1103-1108
  • [2] H. Fortin, M. Fafard, N. Kandev, and P. Goulet, FEM Analysis of Voltage Drop in the Anode Assembly, TMS Light Metals 2009, Pages 1055-1060
  • [3] D. Marceau, S. Pilote, M. Désilets, J-F Bilodeau, L. Hacini, Y. Caratini, Advanced Numerical Simulation of the Thermo-Electro-Chemo-Mechanical Behaviour of Hall-Héroult Cells Under Electrical Preheating, TMS Light Metals 2011, Pages 1041-1046
  • [4] Hall-Heroult process, http://en.wikipedia.org/wiki/Hall%E2%80%93H%C3%A9roult_process, website consulted on 18 Feb. 2010
  • [5] R.W. Peterson, Proc. TMS Light Met. 1 (1978) 367
  • [6] http://www.genisim.com/download/epfl2004.htm, consulted on the 3rd April 2010
  • [7] M. Dupuis, Development and Application of an ANSYS® Based Thermo-Electro- Mechanical Anode Stub Hole Design Tool, TMS Light Metals 2010, Pages 433-438
  • [8] P. Goulet, Modélisation du Comportement Thermo-Électro-Mécanique des Interfaces de Contact d''une Cuve de Hall-Héroult, Ph. D. Thesis, Laval University, Quebec, Canada (2004)
  • [9] D. Marceau, P. Goulet, D. Richard, M. Fafard, FESh++, Une Nouvelle Approche Orientée Objet pour la Simulation par Éléments Finis des Problèmes Multiphysiques. Giens, France 2005 - 7ème Colloque National en Calcul des Structures, pages 303-308
  • [10] M. Désilets, D. Marceau Andamp; M. Fafard, “START-Cuve: Thermo-Electro-Mechanical Transient Simulation Applied to Electrical Preheating of a Hall-Héroult Cell”, TMS Light Metals, 2003, Pages 247-254.
  • [11] N. Kandev, H. Fortin, Electrical Losses in the Stub-Anode Connection: Computer Modeling and Laboratory Characterization, TMS Light Metals 2009, Pages 1061-1066
  • [12] W. Li, J. Zhou, Y. Zhou, Numerical Analysis of the Anode Voltage Drop of a Reduction Cell, TMS Light Metals 2009, Pages 1169-1171
  • [13] M. Rouleau, Caractérisation thermo-électro-mécanique des interfaces fonte-aciercarbone dans une cuve d''électrolyse. Master’s dissertation, UQAC (2007)
  • [14] G. D’Amours, M. Fafard, A. Gakwaya Andamp; A. Mirchi, Multi-Axial Mechanical Behavior of the Carbon Cathode: Understanding, Modeling and Identification, TMS Light Metals, 2003, page 633-639.
  • [15] S. Wilkening, J. Côté, Problems of the Stub – Anode Connection, TMS Light Metals 2007, Pages 865-873
  • [16] D. Richard, P. Goulet, O. Trempe, M. Dupuis and M. Fafard, Challenges in Stub Hole Optimisation of Cast Iron Rodded Anodes, TMS, 2009, Pages 1067-1072
  • [17] http://en.wikipedia.org/wiki/Sensitivity_analysis, consulted on the 11th March 2012
Como citar:

Jeddi, E.; Marceau, D.; Kiss, L. I.; St-Georges, Lyne; Laroche, D.; Hacini, L.; "THERMO-ELECTRO-MECHANICAL INVESTIGATION OF VOLTAGE DROP IN ANODE ASSEMBLY USING FINITE ELEMENT METHOD", p. 1097-1115 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-18265

últimos 30 dias | último ano | desde a publicação