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Unformatted text preview: Page - 1 - of 5 CHE 361
Chemical Process Dynamics and Simulation
3 credits: T/R Lec/Rec, each 2 h/wk, Kearney 212
Winter Term 2012
Instructor: Dr. Keith L. Levien 203 Gleeson Hall
Office Hrs.: Mon, Wed, Thur 3-4pm and by email appointment TA: Xiangming Wu
Office Hrs.: Tues 1-2, Wed 2-3pm Off Hrs in south end student lounge
[email protected] Prerequisites: CHE 102 (knowledge of MATLAB), MTH 256 (ordinary differential eqns)
CHE 331 (also CHE 211, 212, 311), personal laptop with latest version of
MATAB 2011b running: http://engr.oregonstate.edu/computing/personal/149
Every student must have ENGR and ONID accounts. Read email daily. Note: a class
email distribution list will be generated from ENGR accounts. You could “forward”
ENGR or ONID to any other account, but your provider (hotmail, gmail, etc.) may block
emails from OSU and you would miss important information !!
Student Learning Outcomes:
By the end of the course, you will be able to:
1. use Laplace transforms to solve initial value problems (IVPs) for linear models of chemical
processes or numerical methods to solve IVPs from linear or nonlinear models.
2. solve dynamic models of linear processes using the transfer function approach and apply this
approach to approximate nonlinear chemical process behavior.
3. characterize classical first-order, second-order and first-over-second-order dynamics with
standard parameters of gain, time constant, damping factor and numerator/zero time
constant. This includes identifying values of poles and zero.
4. derive an appropriate linear dynamic model of a chemical process from first principles
(mathematical derivation), including the conversion of physical variable ranges of input
and output signals in order to analyze the dynamics of transmitters and final control
elements as well as the physical process.
5. identify an appropriate linear dynamic model of a chemical process using parameter
estimation techniques with step response data (a "bump" test) or from frequency domain
data (Bode plot) obtained from an experiment or calculated using a computer-based
model of a process.
6. analyze transfer function block diagrams which include series, parallel and loop
configurations to find the "overall" transfer function between a single input and a single
output. Page - 2 - of 5 Course Content and “Tentative” Schedule :
This course includes fundamental principles of process dynamics and instrumentation used in the control of process
variables such as pressure, temperature and flow rate.
Wk# Dates Topics Text Ref + handouts 1 T, Jan 10
R, Jan 12 Intro. to dynamics & review Laplace transform/IVPs
"Math" nomenclature: response/forcing function
"Control" nomenclature: inputs (manipulated m and
disturbance d), output (y or C) , states (x1, x2...) Chap1
HW1 due Thur Jan. 12 2 T, Jan 17
R, Jan 19 Transfer function models (TFs) - Laplace "domain":
nominal steady state - The Bioreactor Project
Linearization (pgs 88-91) MATLAB software
Dynamic behavior of 1st-order and 2nd-order systems,
bring laptops on Thur. Chap3(skim 3.5)
HW2 due Thur Jan. 19 3 T, Jan 24
R, Jan 26 Multivariable systems and transfer functions in a "matrix
G" derivation. 1st-order and 2nd-order systems finished.
Thur = bioreactor steady-state Simulink check Chap 5
HW3 due Thur Jan. 26
by teams 4 T, Jan 31 More complicated TFs and their step responses: "zeros"
and "time delay". Development of TF models from
experimental data. Chaps 6, 7 intro. R, Feb 2 EXAM #1 Thur. (Topics+HW1-3) HW4 due Thur Feb. 2
by individual 5 T, Feb 7
R, Feb 9 Numerical solutions of nonlinear ODEs
Thur = Computer tools (step2g.m with team laptops) Chap7, HW5 due Fri.
Feb. 10 5pm, by teams 6 T, Feb 14
R, Feb 16 Experimental methods continued
Sinusoidal response: t-domain of frequency response Chap7 , Chap 14 SEMD3
HW6 due Thur Feb. 16 7 T, Feb 21
R, Feb 23 Frequency response models for G(s) models selected Chap.
14 – G(s) from Bode plots, Thur = pulse testing and
bioreactor Bode plots Handouts 8 T, Feb 28
R, Mar 1 Development of bioreactor frequency response models from
pulse testing - laptops, bioreactor nonlinearity analysis
EXAM #2 Thur. (Chaps 6,7,14 SEMD3) Handouts and project
report tables 9 T, Mar 6
R, Mar 8 Check progress: Bioreactor step and pulse testing complete,
controller “design”, laptops Read Chap 9 SEMD3,
pgs 150-158 Thur Bioreactor Feedback Control Testing, team laptops HW8 due Thur Mar. 8 10 T, Mar 13
R, Mar 15 Tue. - Bioreactor Control handout evaluation results due.
Course evaluation Thur. + Bioreactor Proj review
Bioreactor report due Fri. Mar 16 = 5pm
Final exam Mon, 3/19/12 9:30-11:20 am = Kearney 212
includes feedback control material only from the class
handouts: 3 block diagram and “Smart Operator” approach
when the process is first order. HW7 due Thur Feb. 23 Page - 3 - of 5 Textbook:
Required = Seborg, Edgar, Mellichamp and Doyle, Process Dynamics and Control, 3nd
Edition, J. Wiley & Sons, 2011. Chaps: 1, 2-7, 13, 9 Appendix C = “SEMD3”
Warning = the “International Edition” does not contain all chapters !!!
Evaluation of Student Performance:
The grades will be based upon examination of course work. An approximate breakdown is as
Midterms (2 x 15%)
Homework is instrumental in helping you grasp fundamental concepts and in exposing
you to techniques and skills for applying these principles to real-life situations.
Homework should be done in several sittings; you cannot expect to be successful doing
homework quickly the night before it is due. You may discuss homework problems with
your classmates (NOT COPY THEIR SOLUTIONS), but please try them on your own
first. Additionally solutions must be written up independently. It is particularly important
to document your independent work using computer programs, since this can be an area
of abuse. For example, you must include your name, the class number, an assignment
identifier and the date you created final MATLAB programs to be handed in for grading.
Use the following guidelines for homework preparation (1st page = Cover Sheet):
• Use clean, 8.5 x 11 inch paper. Engineering paper is preferred; neatness is
important and appreciated. A copy of the cover sheet for each homework must be
the attached to the front of your work. Copies of these cover pages will be
available from the class web page.
Write on only one side of the paper, and start a new problem on a new sheet of
Write the following in the upper right corner of each page:
Your Name, CHE 361
HW number / due date
Page number/Total pages, e.g. 3/7 = third page of 7 total.
Securely staple all pages; do not fold or paper clip together.
Show all of your work. Draw a block around your final answer(s).
For graphical solutions, use MATLAB generated plots. Label the axes of your
graph and include units using MATLAB, not added by hand writing.
Provide MATLAB program and function listings (.m file printed out) on a
separate sheet. Page - 4 - of 5 Midterm Exams
Exams are scheduled as shown in the syllabus and last 110 minutes. The exams are open
textbook (SEM2 text) and notes. It is your responsibility to bring a textbook, a calculator,
pencils and paper. If you MUST miss one of these exams for an emergency situation,
please let me know as soon as possible. If you oversleep or skip an exam you will not
have an opportunity to make it up. If you have a valid (according to me) time conflict and
you let me know in advance, there is the possibility of taking an exam at an alternate
If you MUST miss a midterm or the Final Exam for an emergency situation, please let me
know as soon as possible. If you oversleep or skip an exam you will not have an
opportunity to make it up. If you have a valid (according to me) time conflict and you let
me know in advance, there is the possibility of taking an exam at an alternate time. Class Attendance
Attendance is MANDATORY! You are expected to attend every class and participate in
discussion. Lectures are designed to supplement, not replace, the reading material, and to
develop problem-solving skills. If you are not able to make class, notify the instructor
before class. Unexcused absences may lower your final course grade. If you do miss class,
it is your responsibility to find out what was covered and any administrative information
that was discussed.
While the University is a place where the free exchange of ideas and concepts allows for
debate and disagreement, all classroom behavior and discourse should reflect the values
of respect and civility. Behaviors which are disruptive to the learning environment will
not be tolerated. As your instructors, we are dedicated to establishing a learning
environment that promotes diversity of race, culture, gender, sexual orientation, and
physical disability. Anyone noticing discriminatory behavior in this class, or feeling
discriminated against should bring it to the attention of the instructors or other University
personnel as appropriate.
The following specific behavior is not allowed:
• No cell phones or pagers in class.
• No use of Laptops or other electronic devices for activity outside of its use in
THIS class (i.e, surf the web, email, pictures)
• No reading the Barometer during class
• No eating during class Page - 5 - of 5 Cheating and Student Conduct:
The instructors of this class take the issue of academic honesty very seriously. You are
expected to be honest and ethical in your academic work. There is a “zero tolerance”
policy in effect for cheating in this class. Any instance in which a student is caught
cheating will be handled in strict accordance with the policies outlined at
http://www.orst.edu/admin/stucon/achon.htm. In order to provide students with a positive
learning environment, OSU has adopted a pledge of civility, which can be found at
Academic dishonesty is defined as an intentional act of deception in one of the following
• Cheating- use or attempted use of unauthorized materials, information or study aids
• Fabrication- falsification or invention of any information
• Assisting- helping another commit an act of academic dishonesty
• Tampering- altering or interfering with evaluation instruments and documents
• Plagiarism- representing the words or ideas of another person as one's own
When evidence of academic dishonesty comes to the instructor's attention, the instructor
will document the incident, permit the accused student to provide an explanation, advise
the student of possible penalties, and take action. The instructor may impose any
academic penalty up to and including an "F" grade in the course after consulting with his
or her department chair and informing the student of the action taken.
Students with Disabilities:
Accommodations are collaborative efforts between students, faculty and Disability
Access Services (DAS). Students with accommodations approved through DAS are
responsible for contacting the faculty member in charge of the course prior to or during
the first week of the term to discuss accommodations. Students who believe they are
eligible for accommodations but who have not yet obtained approval through DAS should
contact DAS immediately at 737-4098. ...
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This note was uploaded on 03/01/2012 for the course CHE 361 taught by Professor Staff during the Winter '08 term at Oregon State.
- Winter '08