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    Optimal control problems arising in the zinc sulphate electrolyte purification process

    187462_187462.pdf (112.7Kb)
    Access Status
    Open access
    Authors
    Wang, L.
    Gui, W.
    Teo, Kok Lay
    Loxton, Ryan
    Yang, C.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wang, Ling Yun and Gui, Wei Hua and Teo, Kok Lay and Loxton, Ryan and Yang, Chun Hua. 2012. Optimal control problems arising in the zinc sulphate electrolyte purification process. Journal of Global Optimization. 54 (2): pp. 307-323.
    Source Title
    Journal of Global Optimization
    DOI
    10.1007/s10898-012-9863-x
    ISSN
    09255001
    Remarks

    The final publication is available at Springer via http://doi.org/10.1007/s10898-012-9863-x

    URI
    http://hdl.handle.net/20.500.11937/13401
    Collection
    • Curtin Research Publications
    Abstract

    Before zinc electrolysis, zinc powder is added to the zinc sulphate electrolyte solution to facilitate the removal of harmful metallic ions. This purification process can be modeled by a time delay differential equation. Since some of the parameters in this model are unknown, zinc powder is normally added excessively. We use an optimization technique to estimate the unknown parameters from experimental data. Then, we formulate an optimal control problem to minimize the amount of zinc powder added. We solve this optimal control problem numerically by using the control parametrization method. The results indicate that the amount of zinc powder added can be decreased, on average, by approximately 7%.

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