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An introduction to process dynamics and process control technology.
• Dynamic process modelling • Process dynamic elements such as resistive, capacitive, first-order, oscillatory and dead-time elements• Behaviour of systems of dynamic elements using Python and Excel• Control hardware including controllers, sensors and valves• Basic feedback control concepts and the Proportional-Integral-Derivative controller• Closed loop stability and empirical tuning of controllers• Cascade, ratio and feed-forward control• Control of unit operations• Process automation and PLC logicThe course will be taught using a real-time approach involving the hands-on use of dynamic simulation using Excel and Python. It builds on Python and Excel skills from previous courses. (The course does not use the classical Laplace Transform approach).
Students should:• Fully understand the need to name, date and clearly document all files, spreadsheets and computer programs.• Understand the elements that affect the dynamics of a process such as first-order response, dead time, and capacity.• Be able to simulate using Excel and Python, the dynamics response of systems made up of typical dynamic elements.• Become familiar with some typical items of control hardware that are used in industry.• Understand PID control well enough to be able to simulate and tune a real process.• Be able to simulate more complex control including cascade, ratio and feed forward.• Know which control loops might be suitable for a range of unit operations.• Be able to define and simulate automation of a simple process with many steps.
ENCH298 (from 2016)
36 lectures, 3 assignments, 2 labs, and 1 test. Attendance at all lectures is highly encouraged. Students who do not complete all assignments and the exam are much less likely to pass.
Ken Morison
Svrcek, William Y. , Mahoney, Donald P., Young, Brent R; A real-time approach to process control ; Third edition; Wiley, 2014.
The approach used in the recommended text is followed
This is a compulsory course. It provides preparation for ENCH494 and for graduate employment. The prerequisite is ENCH298.
Domestic fee $1,030.00
International fee $5,750.00
* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.
For further information see Chemical and Process Engineering .