Tel: | +27 82 440 7790 |
Fax: | 086 671 9320 |
Email: | michael.brown@mweb.co.za |
www: | www.controlloop.co.za |
more information about Michael Brown Control Engineering |
I am often astounded by finding really basic problems with controls in plants, which have operated that way for years. These problems are so basic that one can only wonder at how these controls could
read more
Answer to the question at the end of Case History 166 (www.instrumentation.co.za/8690r)
In the last Case History article, I suggested you try and see what was not so good about a level control, which
read more
Control loop expert Michael Brown recently received a question from reader, Hansell Williams. The question relates to applying neural network and machine learning concepts to plant automation and control.
read more
I was present at a very interesting discussion the other day with people who are leaders in the automation and control industry. The subject was how jobs would disappear over the next decade or two as
read more
I have published many articles showing problems in control loops with figures showing the tests conducted to determine the problems. This time, by way of a change, I would like to suggest that readers
read more
I often publish articles showing valve problems. One of the reasons is that I do not think many people understand that valves are generally responsible for 75-80% of all control loop problems. When it
read more
I was recently asked to conduct a control loop audit on a mineral extraction processing plant which was fairly old and had been acquired by new owners. A new and very modern control system had been installed
read more
I have often written about the huge advantages of using cascade control on processes with very slow dynamics. It is particularly useful when it comes to most temperature related processes, which are normally
read more
Eliakim Musikiti read one of my articles in SA Instrumentation and Control and emailed me to ask what the differences are between PLCs and DCSs. I started replying to him and then thought that it would
read more
In a recent assignment to sort out problems being experienced in a petrochemical refinery, I came across the following two examples: Drum pressure misbehaving
The first was with the control of an
read more
It still fascinates me that so many control problems are caused by poor operation of control valves. I have encountered and recorded hundreds of cases of such problems. What is amazing is that many plant
read more
I was recently asked to help with a client who treats a product in an autoclave and was complaining that they always got overshoot on a step setpoint change to holding temperature. The following is taken
read more
© Technews Publishing (Pty) Ltd | All Rights Reserved