Unit 1 Introduction of Process Control

4 lecture hours

• Introduction to process control
• process variables
• degree of freedom
• Steady state and dynamic system
• control logic
• servo and regulatory
• block diagrams
• control structures . control valves
• characteristics of control valves

Unit 2 Laplace Transforms

• Transforms of simple functions
• Ramp functions
• Sine 6 10 Bachelor/Master of Engineering Syllabus Subject Code : 3174401 Subject Name : Chemical Process Control functions
• Solutions of differential equations
• Inversions of transform function by partial fractions
• qualitative nature of solutions
• Final value and initial value theorems
• Translation of transforms
• Transforms of unit impulse functions
• Transforms of integral

Unit 3 First Order Systems

6 lecture hours

• Physical examples of first order systems
• Linearization technique for a non linear valve
• Derivation of the transfer function for a standard first order system
• Response of a first order system to pulse
• step and sinusoidal inputs
• Self regulating and non self regulating first order systems
• First order systems in series
• Non interacting and interacting systems
• Derivation of transfer functions of these systems

Unit 4 Second Order Systems

5 lecture hours

• General form of the transfer functions of a second order system
• Response of a second order system to pulse
• step and sinusoidal inputs

Unit 5 The Control Systems

6 lecture hours

• Block diagram
• Standard block diagram symbols
• Negative and positive feedback
• Servo problem v/s regulator problems
• Development of block diagrams
• Process measuring element
• Final control element
• Closed Loop Transfer Functions: Block diagram reduction
• Overall transfer function for single loop system
• Overall transfer function for change in load
• Overall transfer function for multi loop control system
• process and instrumentation diagrams
• parts of control system

Unit 6 Controllers and Final Control Elements

5 lecture hours

• Actual v/s Ideal controller
• Pneumatic controller mechanism of proportional control
• Proportional integral (PI) control
• Proportional derivative (PD) control
• Proportional integral derivative (PID) control
• Control valve
• Control valve characteristics
• Transfer functions of P, On-off, PI, PD, and PID control
• Motivation for addition of integral and derivative modes
• Block diagram of chemical reactor control system

Unit 7 Transient Response of Simple Control Systems

4 lecture hours

• Proportional control for Set point change (Servo Problem)
• Proportional control for load change (Regulator Problem)
• Proportional integral control Bachelor/Master of Engineering Syllabus Subject Code : 3174401 Subject Name : Chemical Process Control for load change
• Proportional Integral control for set point change
• Proportional control for system with measurement lag

Unit 8 Stability

5 lecture hours

• Concept of stability
• Definition of stability (linear system)
• Stability criterion
• Characteristic equation
• Routh test for stability
• Routh array
• Method of Root Locus for stability analysis
• Nyquist stability criterion

Unit 9 Frequency Response analysis

5 lecture hours

• Fortunate circumstances
• Transportation lag, First order system
• First order system in series
• Bode diagrams
• Bode stability criterion
• Graphical rules for Bode diagrams
• Transient response phase margin
• magnitude ratio
• phase shift
• open loop bode diagrams of various controllers

Unit 10 Controller tuning and advance controllers

4 lecture hours

• Ziegler-Nichols method
• Cohen-Coon method
• introduction to cascade control
• feed forward control
• ratio control
• Smith predictor, IMC, MPC, dead-time compensation
• digital control

Unit 11 Introduction to advance topics like Electrical and pneumatic signal

• conditioning and transmission
• Computer process control, PLC, DCS, and SCADA. 4 8