“Wave Detection and Characterization from Current and Voltage Signals of an Aluminium Smelting Cell”

Authors: Ingar Solberg,
Affiliation: Elkem
Reference: 2003, Vol 24, No 1, pp. 3-13.

Keywords: Wave analysis, aluminium production, signal processing, visualisation, anode current, electrolysis

Abstract: In aluminium electrolysis cell there is a layer of 10-20 cm of liquid aluminium. On top of this there is a layer of a melted salt electrolyte with a number of carbon anode blocks partially submerged. The density difference of the two liquids is small and low frequency waves can occur in the interface. The waves cause variation in the current distribution between the individual anode carbon blocks. These variations are in this article analysed and visualised with MATLAB to show information of the temporal variations, frequencies and spatial modes of the waves.

PDF PDF (1096 Kb)        DOI: 10.4173/mic.2003.1.1

DOI forward links to this article:
[1] Y. Wang, J. Tie, S. Sun, G. Tu, Z. Zhang and R. Zhao (2014), doi:10.1007/s12666-014-0473-9
References:
[1] KENIRY, J.T., BARBER, G.C., TAYLOR, M.P. WELCH, B.J. (2001). Digital processing of anode current signals: An opportunity for improved cell diagnosis and control, Light Metals, pp. 1225-1232.ISBN: 0-87339-480-1, ISSN: 1096-9586.
[2] MALLAT, S. (1998). A wavelet Tour of Signal Processing, Academic Press, San Diego,.ISBN: 0-12-466605-1.
[3] ROMERIO, M.V. ANTILLE, J. (2000). The numerical approach to analyzing flow stability in the aluminium reduction cell, Aluminium, 76, 1031-1037.ISSN: 0002-6689.


BibTeX:
@article{MIC-2003-1-1,
  title={{Wave Detection and Characterization from Current and Voltage Signals of an Aluminium Smelting Cell}},
  author={Solberg, Ingar},
  journal={Modeling, Identification and Control},
  volume={24},
  number={1},
  pages={3--13},
  year={2003},
  doi={10.4173/mic.2003.1.1},
  publisher={Norwegian Society of Automatic Control}
};