6CH3-Process Dynamics & Control |
Units: I |
Introduction to process control and review of Laplace transforms
Linear Open-Loop Systems : First–order Systerms : Transfer Function, Transient response
(step response, impulse response, sinusoidal response) examples of first – order systems,
response of first order systems in series : non-interacting systems and interacting systems.
Second – order systems: transfer function, step response, impulse response, k sinusoidal
response, transportation lag.
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Units: II |
Linear closed-loop Systems : Control System: components of a control system, block
diagram, negative feedback and positive feedback, servo problem and regulator problem. |
Units: III |
Controller and final control element: Mechanism of control valve and controller, transfer
functions of control valve and controllers (P, PI, PD, PID). Example of a chemical reactor
control system.
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Units: IV |
Closed-Loop Transfer functions: Overall transfer function for single-loop systems, overall
transfer function for set-point change and load change, multi-loop control systems.
Transient Response of simple control systems: P and PI control for set- point change and
for load change.
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Units: V |
Stability : Concept of Stability, Stability criteria, Routh test for stability, Root Locus.
Frequency Response : Introduction to Frequency Response, Bode Diagrams for First and
second order systems, Bode stability Criteria, Ziegler-Nichols and Cohen-coon Tuning
Rules.
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Text/ Reference Books |
1. Coughanowr, D.R., “Process Systems Analysis and control” 2nd ed. McGraw-
Hill, 1991.
2. Stephanopoulos, G., “Chemical Process Control” PHI, 1984.
3. Luyben, W.L. “Process Modeling, Simulation and Control for Chemical
Engineers,” McGraw Hill, 1973.
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