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Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Process Control and dynamics Department of Chemical Engineering, U.E.T. Lahore Pakistan.

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Presentation on theme: "Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Process Control and dynamics Department of Chemical Engineering, U.E.T. Lahore Pakistan."— Presentation transcript:

1 Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Process Control and dynamics Department of Chemical Engineering, U.E.T. Lahore Pakistan Dr. –Ing. Naveed Ramzan Lecture 1: Introduction to Process Control

2 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Course Books Ch.E-411PROCESS DYNAMICS AND CONTRO L Introduction & significance of control; Feedback& feed forward control; Design & Hardware elements of control; Dynamics of first & second order systems; Overall transfer function testability; Controllers (P, PI, PID etc) & final control elements; Representation of control systems; Multiple control loops; cascade, ratio, over-riding etc. Introduction to stability of chemical processes; introduction to frequency response techniques; Routh's criteria, Bode plots, Nyquit method; Computer control, Introduction to Distributed Control Systems; Case study: Development of control scheme of complete plant.

3 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Tentative Schedule Ch.E-411PROCESS DYNAMICS AND CONTRO LWeeks BookChapter Introduction & significance of control; Feedback& feed forward control; ,2,3,13 Design & Hardware elements of control; Dynamics of first & second order systems; 2-3 1(2) 10,11(5,6,8) Overall transfer function testability; Controllers (P, PI, PID etc) & 3-4 1(2) 14,15,16 ( ) Final control elements Representation of control systems; Multiple control loops;cascade,ratio,over-riding etc. 1 Introduction to stability of chemical processes; introduction to frequency response techniques; ,17,18 Routh's criteria, Bode plots, Nyquit method; Computer control, 1 Introduction to Distributed Control Systems; 1 Case study: Development of control scheme of complete plant. 1

4 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Contact Hours Section A Monday :3-4 Thursday : 2 Section B Tuesday3-4, 5 KSK Campus Friday1-3

5 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Introduction to Process Control

6 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Introduction to Process Control

7 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Introduction to Process Control

8 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

9 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

10 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

11 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

12 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

13 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Basic Concept feedback system

14 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Examples of feedback system

15 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Examples of feedback system

16 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Examples of feedback system

17 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Examples of feedback system

18 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Examples of feedback system

19 6. Februar 2008 / Dr. –Ing Naveed Ramzan # What does a feedback system do?

20 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Suppressing the influence of external disturbances Ensuring the stability of a chemical process Optimizing the performance of a chemical process Incentives for Chemical Process Control

21 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Suppressing the influence of external disturbances Incentives for Chemical Process Control

22 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Suppressing the influence of external disturbances Incentives for Chemical Process Control Disturbances?

23 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Suppressing the influence of external disturbances Incentives for Chemical Process Control

24 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Ensuring the stability of a chemical process Incentives for Chemical Process Control

25 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Ensuring the stability of a chemical process Incentives for Chemical Process Control

26 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Ensuring the stability of a chemical process Incentives for Chemical Process Control

27 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Why is Control Necessary? Optimizing the performance of a chemical process Incentives for Chemical Process Control

28 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Home Work-1

29 Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan #

30 Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Instrumentation and Process Control Department of Chemical Engineering, U.E.T. Lahore Pakistan Dr. –Ing. Naveed Ramzan Lecture 2: Design Aspects of a Process Control System

31 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Classification of Variables in a Chemical Process

32 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Example Classification of Variables in a Chemical Process

33 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System

34 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System

35 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System Primary Measurements

36 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System Secondary Measurements Unmeasured output=ƒ(Secondary measurements)

37 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System Direct Measurements of external disturbances

38 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System

39 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System A control configuration is the information structure that is used to connect the available measurements to the available manipulated variables.

40 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System Same information flows to different manipulated variables

41 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System Same manipulated variables but different measurements

42 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System General Control Configurations Feedback control configurationFeedforward control configuration

43 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System General Control Configurations Inferential control configuration

44 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System General Control Configurations --- Single input, Single output (SISO) --- Multiple input, Multiple output (MIMO)

45 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Design Elements of a Control System --- Proportional Control --- Integral Control --- Proportional Integral Control --- Derivative Control --- Proportional Integral Derivative Control

46 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Hardware for a process Control System --- Chemical Process --- Measurement Instruments or sensors --- Transducers --- Transmission lines --- The Controller --- The Final Control Element --- Recording Elements

47 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Hardware for a process Control System

48 Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan #

49 Modelling and Simulation 6. Februar 2008 / Dr. –Ing Naveed Ramzan # Instrumentation and Process Control Department of Chemical Engineering, U.E.T. Lahore Pakistan Dr. –Ing. Naveed Ramzan Lecture 3: Dynamic behaviour of first order system


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