Search results for: process simulation

Sep
25

Exceptional Opportunities in Process Control – Live Process Flow Diagrams

The first document you have on a project is typically a process flow diagram (PFD). The PFD defines the process. It is the ultimate source of information and sets the plant performance and design. It is interesting to me that we really don’t know how well existing operations match the PFD. When I have posed …

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Jan
14

Biggest Opportunities for Process Control Improvement – The Operator (Training Part 2)

The virtual plant offers a break through in training and knowledge discovery but its potential depends upon the ability to develop dynamic simulations that capture the process relationships and response important for process understanding and control. The best practice of practical real time simulation could easily fill a book but I need to wind this …

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Jan
07

Biggest Opportunities for Process Control Improvement – The Operator (Training Part 1)

Around 1984, there was a breakthrough in use of simulation for checkout and training. Software packages, such as MIMIC and its predecessor SIMVOX, automatically generated tieback simulations from the configuration and the input and output (I/O) cards and emulated the serial communication between the simulation and the DCS. These packages enabled the simulation to read …

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Feb
05

A Head Start in Practical Process Control

The students at Washington University in Saint Louis are ahead of the curve by virtue of the efforts of affiliate professors Terry Tolliver and Robert Heider who have a combined total of more than 65 years of industrial experience at Monsanto and Solutia. Terry Tolliver teaches a process control course for junior and senior chemical …

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Dec
18

Simulation Using Foundation Fieldbus Function Blocks

Training an operator on a new control system often includes hands on experience with a training system that supports dynamic process and control system simulation. The hardware for such a training system may be constructed using spare parts from the new control system. A simple simulation of the process can often be implemented using the …

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Oct
09

How Process Control Education Should be Changed in the Universities

Professor Tom Edgar of the University of Texas and Joseph Alford from Eli Lilly and Co. have been collecting data and opinions regarding the current syllabus of the typical undergraduate Chemical Engineering Process Control Course and its relevance to the skills and knowledge needed in today’s industrial process control environment. An upcoming issue of Intech …

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Aug
19

Fuzzy Logic Control – Example

In this fuzzy logic control workshop contained in Chapter 6 of Advanced Control Foundation – Tools, Techniques, and Applications, the control performance of fuzzy logic control is be compared to the performance of PID control. For this example, the control objective is to reach setpoint in minimum time with no overshoot. Two identical process heaters …

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Nov
12

Meet The Expert Session – Advanced Control Foundation

As I mentioned in an earlier blog, Willy Wojsznis and I hosted a Meet the Expert session at Emerson Exchange 2012 that covers key points contained in the book Advanced Control Foundation – Tools, Techniques, and Applications. Below is a picture from this session. I received permission from the Emerson board to record the audio …

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Aug
13

Emerson Exchange – Meet the Expert Session

This year Emerson Exchange will be held October 8-12, 2012 – Hilton Anaheim in Anaheim, California.  A number of meet the expert sessions are scheduled for the last day of the conference, Friday, October 12th . Willy Worjsznis and I will host one meet the expert session in which we will give an overview of …

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Jul
30

Boot Camp for New Employees

Courses required for an engineering degree are designed to provide the student with a sound technical foundation for work in industry. However, in most cases these courses do not address the terminology and common practices that an engineer must know to design, implement, checkout and commission a process control system. Universities can help bridge this …

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