CO1: Explain the principals involved in the specifications, design and selection aspects of various measuring sensors.
CO2: Analyze the dynamics of processes and derive the response of the system for various Input disturbances.
CO3: Describe feedback control with servo and regulatory action and analyze open and closed- Loop responses and stability of systems
CO4: Design P, PI and PID type control systems
CO5: Enhance feedback control with advanced control strategies such as cascade control, feed Forward control and ratio control.
Course Content
Process Instrumentation
Characteristics of measurement system, classification, elements of measuring system and their functions, static and dynamic characteristics of instruments, calibration, Pressure measurement: elastic pressure transducers, vacuum measurement, Temperature measurement: temperature scales, electrical temperature instruments, radiation and optical pyrometers, Flow measurement: mass flow meters, Control valves, control valve construction, valve sizing, inherent and effective valve characteristics.
Process Dynamics
General principles of process control, basic control elements, degree of freedom and fixing of control parameters, simple system analysis, Laplace transformation and transfer functions, block diagrams, linearization, effect of poles, zeros and time delays on system response, response of first order systems, transfer function, transient response, step response, impulse response, sinusoidal response, physical examples of first order systems, liquid level, mixing process, response of first order systems in series, non-interacting systems, interacting systems, higher order systems, second order and transportation lag, under damped systems, step response, impulse response, sinusoidal response.
Control System Design
The control system, block diagram, servo problem and regulator problem, negative feed-back and positive feedback controllers, ideal transfer functions, proportional, proportional integral and proportional integral derivative controllers, on-off controllers, Stability, root locus, frequency response using Bode and Nyquist plots, control system design by frequency response, Bode stability criterion, gain and phase margins, Control tuning (Ziegler-Nichol Rules and CohenCoon rules), Advanced control strategies, cascade control, feed forward control, ratio control.
Reference:
1. D. R. Coughanowr, S. E. LeBlanc, Process System Analysis and Control, 3rd Edn., McGraw Hill, 2017.
2. D. E. Seborg, T. F. Edgar, D. A. Mellichamp, F. J. Doyle III, Process Dynamics and Control, 4th Edn., John Wiley and Sons, 2016.
3. S. K. Singh, Industrial Instrumentation & Control,3rd Edn., McGraw Hill, 2009
4. D. Patranabis, Principles of industrial instrumentation, 3rd Edn. New York: Tata McGraw-Hill, 2010.
5. B. W. Bequette, Process Control: Modeling, Design and Simulation, 2nd Edn, Pearson Edcation,2023
6. W. L. Luyben, Process Modeling Simulation and Control for Chemical Engineers, 2nd Edn., McGraw Hill,1999
7. D. P. Eckman, Industrial Instrumentation, New York: Wiley Eastern Ltd., 1990.