In many of my previous articles I have highlighted the fact that the vast majority of control practitioners have no real understanding of the practical aspects of regulatory control. They have found that ...
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Pressure has a major effect on the separation and cut in a distillation column, and column stability can be dramatically hampered if there is poor pressure control. One of the most common ways of controlling ...
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Just before starting on this piece, I read a fascinating article by a valve manufacturer in the April issue of SA Instrumentation & Control, which mentioned a case where a relatively small 1,4% improvement ...
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Michael Brown is holding a series of his well-known courses on practical process control in Johannesburg, and Richards Bay. The courses are unique and are invaluable to novices, as well as to experienced ...
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I have lost count of the number of times I have been told that flow loops are very simple things, that they are easy to tune, that you do not need a tuning package to tune them, that they can be tuned ...
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Noise on the PV signal was discussed in the previous loop signature article, and it was mentioned that it is generally better to live with the noise rather than filtering it out; provided it does not ...
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As mentioned in previous articles, all industrial processes fall into one of two classes of dynamics, known as self-regulating and integrating. In particular refer to Loop Signature No. 2 for a full description ...
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Michael Brown is holding a series of his well-known courses on practical process control in Johannesburg, in April this year. The courses are unique in the world and are invaluable to novices, as well ...
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I have often written about the dearth of understanding of practical control, which is largely due to the generally purely theoretical teaching of process control at educational institutions. I have also ...
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This month's article deals with a few of the more difficult problems encountered in level controls. Before going into them it would be appropriate to summarise a few important points on integrating processes ...
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Michael Brown is holding a series of his well-known courses on practical process control in November in Johannesburg. The courses are unique and are invaluable to both novices and highly experienced practitioners ...
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I was recently asked to optimise some loops in a petrochemical plant. Most of the time when doing this sort of work, improvements are the order of the day, and I normally go home at the end of the day ...
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