JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Process Dynamics: Process variables, Load variables, Dynamics of simple pressure, Flow, Level and temperature process, Interacting and non-interacting systems, Continuous and batch process, Self-regulation, Servo and Regulator operation, Problems.

UNIT - II

Control Actions and Controllers and Types of Controllers: Basic control actions, Characteristics of two position, three position, Proportional, Single speed floating, Integral and Derivative control modes, PI, PD, PID control modes, Problems, Types of controllers, Pneumatic, Hydraulic and Electronic Controllers to realize various control actions.

UNIT - III

th Controller Settings and Tuning of Controllers: Evaluation criteria – 1/4 decay ratio, IAE, ISE,ITSE, ITAE, Determination of optimum settings of mathematically described process using time response and frequency response, Tuning of controller process curve reaction method, Continuous oscillation method, Damped oscillation method, Problems.

UNIT - IV

Final Control Elements and Control Valves: I/P Converter, P/I converter, Pneumatic, electric and hydraulic actuators, Valve Positioned, Control valves – characteristic of control valves – valve body – Globe, Butterfly, diaphragm, Ball valves, Control valve sizing, Cavitations, Flashing, Problems.

UNIT - V

Multi loop Control System: Feed forward control, Ratio control, Cascade control, Split range, Multivariable control and examples from distillation column, Boiler system and heat exchanger, Plant wide control issues, Hypothetical plant for plant wide control studies, Internal feedback for material and energy, Interaction of plant design and control system design, Systematic Procedure for plant wide control system design, Case Study- The Reactor/Flash Unit plant, Effect of control structure on Closed loop performance.

TEXT BOOKS:

• 1. Stephanopoulos, “Chemical Process Control: An introduction to Theory and Practice”, Prentice Hall, New Delhi, 1999.
• 2. Harriott P., “Process Control”, TMH, 1991.

REFERENCE BOOKS:

rd

• 1. Liptak B.G., Chilton, “Process Control”, 3 Edition, Book Company, Pennsylvania, 1995.
• 2. Pollard A., “Process Control”, Heinemann Educational Books, London, 1971.
• 3. Eckman D.P, “Automatic Process Control”, Wiley Eastern Ltd., New Delhi, 1993.
• 4. D. Patranabis, “Principles of Process Control”, 2012, 3rd Edition, McGraw Hill.
• 5. Coughanowr, “Process System Analysis and Control”, McGraw Hill, Singapore, 1991. M. TECH. I YEAR II SEMESTER ELECTRONICS & INSTRUMENTATION