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    Optimal control of an industrial-scale evaporation process: Sodium aluminate solution

    Access Status
    Fulltext not available
    Authors
    Chai, Q.
    Yang, C.
    Teo, Kok Lay
    Gui, W.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Chai, Q. and Yang, C. and Teo, K.L. and Gui, W. 2012. Optimal control of an industrial-scale evaporation process: Sodium aluminate solution. Control Engineering Practice. 20 (6): pp. 618-628.
    Source Title
    Control Engineering Practice
    DOI
    10.1016/j.conengprac.2012.03.001
    ISSN
    09670661
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/18666
    Collection
    • Curtin Research Publications
    Abstract

    A mathematical model of the evaporation system in the form of a state space model with multiple time delays is constructed. On this basis, an optimal control of an industrial-scale alumina evaporation process is obtained, where the objective is to find a control such that the specific quality of the sodium aluminate solution control is met with the least energy usage and the constraints on the state and the control are satisfied. Then, a numerical algorithm is developed for solving this optimal control problem. It is applied to study the optimal control of a practical alumina evaporation process and the results obtained are highly satisfactory.

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