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Last updated 5 Jan 2020
Now available as PDF's
Over 100 PDF Case Histories
For prices and ordering information, please contact the company at michael.brown@mweb.co.za
Examples of some of the Case Histories in the PDF are given below:
A series of articles based on actual problems occurring in process plants
15 The importance of understanding your controller
17 How well are the feedback control loops in your plant working?
36 Successful optimisation: - the need for commitment by all
46 Analysis uncovers control problems in a process plant
55 Control: perceptions versus reality
58 Problems in an interactive combustion oil control system
59 Regulatory controls in most plants do not work properly
60 Do mines have particularly bad control problems?
65 The only magic: understanding what you are doing
71 The amazing problem free plant
75 Mould level control in continuous casting machines
76 Money being wasted: improve the performance of your base layer controls
79 Are smart positioners the answer to all valve problems?
80 Poor control performance is a world wide phenomenon
81 Good control requires obedient valves
85 pH problems at an Australian mine
92 The controller has gone out of tune!
97 Monsters in a chemical plant
Latest Case Histories
(Latest article is Case History 170 Posted on 5 Jan 2020)
142 Report after Optimisation Exercise - No 3
143 Report after Optimisation Exercise - No 4
144 Report after Optimization Exercise - No 5
145 Control problems in a Zinc Mine
146 What makes Control Loop Optimisation worthwhile.
147 Why Base-Layer Feedback Control is Needed
148 Discussions on "Crazy Control Strategy"
149 Classic Examples of Badly Optimized Loops
150 Mystery in Distillation Column Temperature Control
151 The Myths Surrounding Dead Time Dominant Processes
152 Control Problems with Airflows in Flotation Banks
153 Why is the Control so terribly Eratic?
154 What happens to the Process if the Valve Jumps
155 Control with Unstable Tuning
156 All Problems can be Sorted by Tuning
157 Positive Lead Integrator Tuning "Party Trick"
158 Report on Temperature Control of Autoclave
159 Bad Valves again Hampering Control
160 More Problems with Control
161 Differences Between PLC'S anbd DCS'S
162 Optimising an Interesting Temperature Control
163 Control Limitations on Mineral Processing Plant
164 More on Valves that don't Control Properly
165 Interpreting Tests on Loop Problems
166 Feel and Understanding. or Lack Thereof?
168 UNBELIEVABLY SIMPLE MISTAKES PREVENT CONTROL
169 TUNING A VERY DIFFICULT TEMPERATURE CONTROL LOOP
170 ROBLEMS CAUSED BY RESET WINDUP
