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411-307 Process Dynamics and Control 1 | |
Credit Points | 7.14 |
Coordinator | Prof. David Boger & Ms Joan Gravina |
Prerequisites | 421-205 Mathematics for Engineers 2.2 and 411-202 Process Engineering 2 |
Corequisites | None |
Semester | 2 (view timetable) |
Contact | 36 hours, comprising 24 hours of lectures and 12 hours of tutorials |
Subject Description | The objective of this unit is to present methods used to describe the dynamics of typical chemical plants and the application of feedback signal to control the operation of these plants. Topics covered include: Examples of controlled and manipulated variables and control schemes in chemical plants. Time domain, Laplace domain and frequency domain analyses of process dynamics modelled by linear ordinary differential equations. Transfer functions, amplitude ratio and phase angle, Bode plots. Modelling of complex chemical plants by a combination of first order, second order and dead time processes. Process identification by step response, frequency response and pulse testing. Transfer function of PID controller. Closed loop transfer function between setpoint and controlled variable and between load variable and controlled variable. Effects of varying proportional gain, derivative time and integral time. Effects of measurement lag. Routh stability analysis, Bode stability criterion, gain and phase margins, Ziegler-Nichols tuning. Cascade control and improvements arising from cascade control. |
Assessment | One examination not exceeding three-hours at the end of Semester two |
Search : Index : Faculty of Engineering : Chemical Engineering
Prev 411-306 Separation Processes 1
Next 411-308 Process Engineering 3
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