(BT05325) INSTRUMENTATION AND PROCESS CONTROL

Unit I: Process Dynamics
Process variables-Load variables-Dynamics of simple processes. Flow, level,
emperature and pressure
Unit II:
Interacting and non-interacting system, continuous and batch process-self -
regulation-Servo and regulator operation problems.
Unit III: Control Actions and Controllers
Basic control actions-characteristics of two position, three position, proportional,
single speed floating. Integral and derivative control modes- P+I. P+D and P+I+D
control modes
Unit IV:
Problems on pneumatic, hydraulic and electronic controllers to realize various control
actions.
Unit V: Optimum Controller Settings
Evaluation criteria, 1/4th decay ratio, IAE. ISE, ITAE- determination of optimum
settings for mathematically described process using time response and frequency
response.
Unit VI:
Tuning process reaction curve method-continuous, oscillation method-damped
oscillation method-problems.
Unit VII: Final Control Element
I/P Converter-pneumatic, electric and hydraulic actuators- valve positioner- control
valves-characteristics of control valves-valve body-Globe, butterfly, diaphragm; Ball
valves- Control valve sizing-Cavitation, flashing problem.
Unit VII: Multi Loop Control System
Feed forward control-Ratio control-Cascade control-Split range-Multivariable control
and examples from distillation column & Boiler system.
TEXT BOOKS:
1. Process control, Pollard A. Heinemann, Educational Books. London, 1971.
2. Process control, Harriott P., Tata McGraw- publishing Co. New Delhi. Reprint
1991.
REFERENCES:
1. Automatic process control, Eckman D.P., Wiley Eastern Ltd. New Delhi. 1993.
2. Chemical Process Control Stephanoupoulis, G., Prentice Hall, New Delhi.
1990.
3. Process Control, Palranabis.