I have written quite a few articles specifically dealing with control problems in mineral processing plants that are largely due to poor understanding, and apparently complete lack of concern of control ...
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The practice of industrial feedback control is one of the most misunderstood engineering disciplines in the world. The theory was developed by eminent mathematicians in the early 1900s and was based on ...
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The longer I work in the field of control loop optimisation, the more I learn that things often do not work the way one expects. I have spent over 30 years optimising literally thousands of feedback control ...
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Problems on a flow control loop    The first example is that of a flow control loop on a liquid flow. Figure 1 shows a closed loop test with a step change of setpoint.    Three problems immediately stand ...
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I have received some comments from Saul Mtakula, a control engineer originally from Zimbabwe but now residing in Canada, about one of my Case History articles, No. 126, published in 2012 under the heading ...
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A friend of mine was appointed to start an advanced control and optimisation group in a very large chemical plant and he hired a group of academically highly qualified young APC (advanced process control) ...
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In this article we look at three cases where great success was achieved through optimisation. The work was all done in a petro-chemical refinery.       Case study 1 The first example is of a reactor feed ...
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As a break from the problem reports presented in the last few Case Histories, this article will discuss some problems I encountered recently at a zinc mining plant in Europe where I carried out a base ...
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This is the fifth article taken from a report which was prepared for various departments in a process company after some optimisation work was performed for them. (The other four articles were published ...
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Michael Brown’s well known courses on practical process control are unique and invaluable to novices, as well as to experienced practitioners in the field of regulatory control optimisation. They offer ...
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This is the fourth article taken from a report which was prepared for various departments in a process company after some optimisation work was performed for them. (The other three articles were published ...
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Michael Brown’s well known courses on practical process control are unique and invaluable to novices, as well as to experienced practitioners in the field of regulatory control optimisation. They offer ...
read more