IC 1351 PROCESS CONTROL 3 1 0 100AIM
To provide basic knowledge of controllers, find control elements and the
i. To study the basic characteristics of first order and higher order processes.
ii. To get adequate knowledge about the characteristics of various controller modes and methods of tuning of controller.
iii. To study about various complex control schemes.
iv. To study about the construction, characteristics and application of
v. To study the five selected unit operations and a case study of distillation column control.
1. MATHEMATICAL MODELLING OF PROCESSES 9
Need for process control – Mathematical model of first order liquid level and thermal processes – Higher order process – Process with dead time, process with inverse response – Interacting and non-interacting systems – Continuous and batch process – Servo and regulator operation.
2. CONTROLLER CHARACTERISTICS & TUNING 9
Basic control action – Characteristics of ON-OFF, proportional, integral and derivative control modes – Composite control modes – P+I, P+D and P+I+D control modes – Electronic controllers to realize various control actions – Evaluation criteria – IAE, ISE, ITAE and ¼ decay ratio – Tuning of controllers – Ziegler-Nichol’s method and cohencoon method – Damped oscillation method.
3. CONTROL SYSTEMS WITH MULTIPLE LOOPS 9
Cascade control – Feed forward control – Ratio control – Selective control systems – Split range control – Adaptive and inferential control.
4. FINAL CONTROL ELEMENT 9
I/P converter – Pneumatic and electric actuators – Valve positioner – Control valves characteristics – Classification of control valves – Control valve sizing – Cavitations and flashing – Selection of control valves.
5. SELECTED UNIT OPERATIONS 9
Mixing – Evaporation – Drying – Heat exchanger – Distillation process – Case study of control schemes of binary distillation column.
L = 45 T = 15 Total = 60
1. Donald P. Eckman, ‘Automatic Process Control’, Wiley Eastern Ltd., New Delhi, 1993.
2. G.Stephanopoulis, ‘Chemical Process Control’, Prentice Hall of India, New Delhi, 1990.
1. B.G.Liptak, ‘Process Control’, Chilton Book Company, 1994.
2. Curtis D. Johnson, ‘Process Control Instrumentation Technology’, 7th Edition, Pearson Education, New Delhi, 2002 / PHI.
3. J.G.Balchen and K.J.Mumme, ‘Process Control structures and Application’, Van nostrand Reinhold Co., New York, 1988.