ChE325 PROCESS DYNAMICS AND CONTROL

Lectures: 4+1 Periods/Week Sessional Marks: 30
University Exam: 3 Hours University Examination Marks: 70


UNIT-I
Basic Principles and problems of process control: Laplace transform, inversion by partial fractions and properties of transforms.
Linear open loop systems: Response of 1st order systems, physical examples, response of 1st order systems in series, 2nd order systems and transportation lag.

UNIT-II
Linear closed loop systems: Control systems, controllers and final control elements, block diagram of a chemical reactor control system, closed loop transfer function, transient response of simple control systems, stability and root locus.

UNIT-III
Frequency response: Introduction, substitution rule, Bode diagrams.
Control system design by frequency response: Temperature control systems, stability criteria, Ziegler-Nichols control settings, transient response.

UNIT-IV
Advanced control strategies: Cascade control, feed forward control, ratio control, internal model control, controller tuning and process identification: Tuning, tuning rules, process identification.
Control Valves: Valve construction, sizing, characteristics, positionor. Distributed parameter system.

Text Books

  1. Process systems analysis and control, Coughanour, D.R. &Koppel, McGraw Hill.

Reference Books
  1. Chemical Process Control, George Stephanopoulos, PHI.
  2. Process Control, Peter Harriot, Tata-McGraw-Hill.
  3. Coulson & Richardson's Chemical Engineering, Volume:3, J.F. Richardson, J. H. Harker and J. R. Backhurst, 4th edition, Elsevier.