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Browsing by UP Author "Wiid, Andries Johannes"
Now showing items 1-5 of 5
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Gous, Gustaf Zacharias; Wiid, Andries J.; Le Roux, Johan Derik; Craig, Ian K. (American Chemical Society, 2023-09)Averaging level control is used in liquid processing plants to optimally use the available volume in surge drums and storage tanks to stabilize the feed to downstream equipment. This paper describes three averaging level ...
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Wiid, Andries J.; Le Roux, Johan Derik; Craig, Ian Keith (Elsevier, 2021)This paper describes the application of decentralised model predictive control (DMPC) to parallel unit operations. A decentralised approach may provide advantages in terms of maintenance, online time, and tuning complexity. ...
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Pressure buffering control to reduce pollution and improve flow stability in industrial gas headers Wiid, Andries Johannes; Le Roux, Johan Derik; Craig, Ian Keith (Elsevier, 2021-10)This paper describes various regulatory and advanced control schemes which can be applied to industrial gas headers. The intention is to exploit the buffering capacity for pollution control as well as improve flow stability ...
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Wiid, Andries Johannes; Le Roux, Johan Derik; Craig, Ian Keith (Elsevier, 2021-02)This paper uses a nonlinear model of the pressure and flow dynamics inside a gas header to obtain the optimal pressure measurement location for buffering control. The nonlinear model is derived from governing equations ...
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Kusel, Ralf R.; Wiid, Andries Johannes; Craig, Ian Keith (Elsevier, 2020)This work demonstrates a practical implementation of a soft sensor to estimate the C5 hydrocarbon impurity in the butane product of a liquid petroleum gas (LPG) recovery system. Such a sensor can then subsequently be ...
Now showing items 1-5 of 5