CHBE 470: Process Dynamics and Control

Syllabus

Course Objectives

Learn the scientific and engineering principles underlying process dynamics and control

Apply and integrate knowledge of chemical engineering to identify, formulate and solve process control problems

Use and apply modern computational techniques and tools for solving chemical process control problems

Become familiar with industrial control systems

Course Content

This course will cover the theory underlining the practice of process control and its applications in the chemical processing industry. As such, it will be both analytical and synthetic in nature. The following is a brief outline of the topics that will be covered.

Introduction to Process Control: Incentives for chemical process control. Feedback and feedforward control configurations. Design of controllers.

Mathematical Tools: Mathematical modeling of dynamic processes. Linearization of nonlinear systems. Laplace transforms. Solution of linear ordinary differential equations using Laplace transforms.

Response of open-loop systems: First-order systems, second-order systems, higher-order systems, time delays, inverse response systems, transfer functions.

The control system: Components of a control loop. Closed-loop transfer functions. Transient response of simple closed-loop control systems. Types of controllers. Stability of controller operation. Frequency response methods. Nyquist Stability Theorem.

Design of control systems: Feedback control. Feedforward control. Cascade Control. Multivariable control systems.

Instructor

Sergio Iadevaia, Abercrombie B223, e-mail: iade@rice.edu

Teaching Assistant

Kai-Wei Liu, Abercrombie C125, e-mail: kl3@rice.edu

Course Textbook

Chemical Process Control: An Introduction to Theory and Practice, George Stephanopoulos, Prentice Hall, 1984

Additional References

D.E. Seborg, T.F. Edgar and D.A. Mellichamp, Process Dynamics and Control, Wiley, 1989

B.A. Ogunnaike and W.H. Ray, Process Dynamics, Modeling and Control, Oxford University Press, 1994

T.E. Marlin, Process Control, McGraw-Hill, 2^nd edition, 2000

W.L. Luyben and M.L. Luyben, Essentials of Process Control, McGraw-Hill, 1997

D.R. Coughanowr, Process Systems Analysis and Control, McGraw-Hill, 2^nd edition, 1991

Homework

9 sets, 15% of the final grade

Unless otherwise stated in class, the assignment will be due in exactly one week at the beginning of class. Late submissions of up to one day will receive 50% credit. No credit will be given for homework submitted more than one day late. Please write concisely.

Prior e-mail request for extension in case of inability to meet a deadline due to special circumstances is required.

Examinations

Midterm I: 25% of the grade. Part I. 1^st or 2^nd week of October. Closed-book, closed-notes during class time

Midterm II: 25% of the grade Part I + Part II. 2^nd or 3^d week of November. Closed-book, closed-notes, take home, no time limit.

Final: 35% of the grade. Everything. Open-book, open notes, take home.

Website Information

Course information, announcements, homework assignments and solutions will be available at the course web page: http://www.owlnet.rice.edu/~chbe470

Grading

Mid-term Exam 1: 25%

Mid-term Exam 2: 25%

Final Exam: 35%

Homework: 15%

Regrade Policy: Requests for regrades on tests or assignments will be accepted only if submitted to the course instructor within two working days after the test or assignment is returned. In such a case, you should submit the original and a separate signed page describing exactly what is disputed.

Grading Standards

A: achievement that is outstanding relative to the level necessary to meet course requirements

B: achievement that is significantly above the level necessary to meet course requirements

C: achievement that meets the course requirements in every respect

D: achievement that is worthy of credit even though it fails to meet fully the course requirements

F: represents failure and signifies that the work was either (1) completed but at a level of achievement that is not worthy of credit or (2) was not completed and there was no agreement between the instructor and the student that the student would be awarded an I.

I (Incomplete): Assigned at the discretion of the instructor when, due to extraordinary circumstances, e.g. hospitalization, a student is prevented from completing the work of the course on time. Requires a written agreement between the instructor and the student.

Honor Code Policy

Students are encouraged to talk with each other, TAs, the instructor, or anyone else about any assignment in the course that is not specifically designated "pledged." This assistance is limited to a discussion of the problem and perhaps a sketch of the solution. Consulting another student's solution (even from a previous CENG 470 class) is prohibited. Moreover, submitted solutions may not be copied from any source.