CHE 232 FALL 2006
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Office: LME 305 \\
Office Hours:
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W 4:00 PM -- 6:00 PM \\
F 4:00 PM -- 6:00 PM \\
or by appointment}
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Catalog Description
Introduction to chemical engineering calculations emphasizing unit equations, process stoichiometry, material and energy balances, states of matter, simulation of steady-state and transient processes, and case studies. Prerequisite: CHE 102, MATH 181, CHEM 202.
Students with Disabilities
If you have a disability for which you will need accomodations, please contact me or Mary Zabel at the Disability Resource Center (Thompson Student Services - 107), as soon as possible to arrange for apropriate accomodations. All discussions will remain confidential.
Advising
A current signed advisement from for the Fall 2006 semester must be shown in the first week of class, or the student will be administratively dropped from the class. Also, a signed advisement form for the Spring 2007 semester must be shown in order to receive a passing grade in the class. Students can download the form from http://www.unr.edu/chemengr/forms/advform.pdf.
Lectures:
The class will meet Monday, Wednesday, and Friday from 9:00-9:50 AM in room MS 321. Additionally, it is mandatory to attend the Undergraduate Seminar Series from 12:00-12:50 PM in room MS 215.
Justification:
This course is designed to introduce chemical engineering sophomores to basic calculations in chemical engineering. The material covered is of fundamental importance for a successful career in chemical engineering and it represents the foundation for subsequent courses in the program (e.g., thermodynamics, reaction engineering, fluid flow, process design, heat and mass transfer, etc). The type of calculations that you are going to carry out is the most frequent in the chemical engineering profession and therefore special attention has to be put on. Additionally, the student will receive training in problem-solving methodologies including computational approaches and will be expose to realistic chemical engineering applications.
Although this course requires substantial hard-work, it is important to know if you pass this class successfully and mastering the material of the course, then the probability of your success in the rest of the curriculum of the program is very high. In other words, work hard in this course, learn a lot, and you will see that you can finish the rest of the courses and become a chemical engineer without major problems.
Educational Objectives:
Upon successful completion of this course, the student should be able to:
- Convert quantities from one set of units to another quickly and accurately; define, calculate, and estimate properties of process materials including fluid density, flow rate, chemical composition variables, fluid pressure, and temperature.
- Draw and label a process flowsheet from verbal process descriptions; carry out degree-of-freedom analyses; write and solve material and energy balance equations (steady-state and unsteady-state) for single-unit and multiple-unit processes, processes with recycles and bypass, and reactive processes.
- Perform pressure-volume-temperature calculations for ideal and nonideal gases; perform vapor-liquid equilibrium calculations for systems containing one condensable component and for ideal multicomponent solutions; calculate internal energy and enthalpy changes for process fluids undergoing specified changes in temperature, pressure, phase, and chemical composition; incorporate the results of these calculations into process material and energy calculations.
- Use spreadsheets and/or applied mathematical software packages to solve material and energy balance problems.
Text:
Basic Principles and Calculations in Chemical Engineering by D. M. Himmelblau and J. B. Riggs. Prentice Hall, Seventh Edition, New Jersey, 2004.
Working Together:
I will encourage working in groups with other students in the class. You will learn the material faster and understand it better by discussing it with your peers. However, keep in mind that for those assignments where individual work is required, the report has to show original work and an appropriate understanding of the subject. If two or more reports seem questionable,no credit will be given to the parties involved and depending upon the circumstances the University of Nevada, Reno rules for academic dishonesty will be enforced. For group assignments, any member of the group might be asked to present the group solution. If that member is unable to do so, the grade for the group on that assignment is zero.
Class Participation and Professionalism:
Student conduct is important in this class. You will conduct yourself as a professional (or soon to be professional) or specialist in whatever area of concentration you are seeking to pursue in your career. Your behavior reflects on your ability to find a job and to be recommended for a job by those you come in contact with during your tenure at University of Nevada, Reno and beyond. In this class you will be graded according to your conduct and participation. Participation includes attending class and contributing to a positive learning environment. If a student's conduct disrupts this positive environment, this conduct can translate into a loss of points. Keeping these points is basically a no brainier for most people - behave yourself, attend class, and take advantage of your situation here to learn the concepts covered in this course now. Quizzes might be given at any time to cover mainly reading assignments and understanding of the material covered in the previous class. It is a matter of success to you, your co-workers, and to the public that you learn the concepts of this course properly before you come in contact with your colleagues on the job.
Attendance:
Students are expected to attend every class meeting. If for any reason you cannot make it to class, e-mail the instructor prior to class. If there is an emergency, send the e-mail as soon as possible. Alternate assignments will be made for missed classes.
Homework (25% of grade):
Homework is very important in this course. Homework will be due every day at class time. Late homework will not be accepted, except for compelling and well-documented reasons. Thus, your homework will often not be graded on the bottom line answers, but on the work which led to the answer. You must show your work! Answers without work shown will not receive credit. Additionally, the homework reports have to be with the following format:
- The homework reports have to be well organized following a logical structure.
- Presentation counts and computer generated reports are highly encouraged.
- Units have to be carried out all the way through the answer. In other words, all numbers have to have units.
- Work with algrebraic expressions as fars as possible before final computations.
- Highlight results and answers.
- Create a cover page for each homework. This should include headings with the names of university, Chemical Engineering Department, course title, instructor, homework number, your name, semester, year, etc.
- Write on one side of the paper.
- Staple your homework in the upper left-hand corner.
Mid-Term Exams (40% of grade, 20% each):
The mid-term exams (a total of two mid-terms) will be announced in class. They will be distributed across the semester and you will be notified at least two weeks in advance. If you miss an exam because of illness or some other emergency, you must submit proof of the emergency and ask the instructor of the class to assess your situation. Permission to take the exam later may be granted depending upon the circumstances. Unless otherwise specified, the exams will be closed book.
Final Exam (25% of grade):
The final exam will cover all lectures - it's a comprehensive exam. All students must take the final exam to pass the course. This exam will be given on Thursday, December 14, 2006, from 9:45 a.m. to 11:45 a.m. in the regular classroom. It will NOT be rescheduled for any reason. If you miss this exam because of illness or some other emergency, you must submit proof of the emergency and ask the instructor of the course to study your case. Exams must be made up before the close of the final examination period or the student will be given an incomplete or a failing grade depending upon the circumstances.
Case Study (10% of grade):
Midway through the course you will be assigned a case study. The case studies are taken from textbooks in the field. Each of the case studies will have a series of problems involving process flowsheets, material balances, and energy balances. These cases have to be worked out in groups. The instructor will create the groups and assign the problems. You can consult with the instructor for general guidelines and talk about the process in general, but the group is fully responsible for working in a organized manner, meeting regularly, and preparing the final report for the project. Remember, in the real world, many employers work on the team concept, so get used to it! On the last of class, you have to turn in the following:- A completed case study report from your group. This should have the overall design of the process, material and energy balances, answers to the questions, etc. The quality of the report, both technical content and presentation should be at a professional level.
- Each group individual has to turn in a single page evaluation of the contribution of each group member. This page is confidential, so you do not have to worry about other members of your group knowing your comments and evaluation. Use percent values for grading the group member contributions. Using your evaluation and instructor's grade of the report, the grade of the case study will be assigned to each group member.
Undergraduate Seminar Series:
It is mandatory to attend the Undergraduate Seminar, every Friday from 12:00 to 12:50 p.m. in room SLH 2. This activity is organized to inform undergraduate students in chemical engineering about the different activities that professionals in the field do by presenting their experiences in industry and academia. Invited speakers will give 30-minute lectures, followed by discussions with the students. All students are expected to enter into these discussions. Attendance to this seminar will be used as the criterion to whether drop or not the lowest homework grade.
Computers and the Internet:
As mentioned earlier, computer generated reports are highly encouraged. For the coming century, you cannot be an efficient engineer without having a solid background in computer usage. Thus, the use of spreadsheets, graphics packages, and programming languages are encouraged in this class. It is highly recommended that you become proficient in at least one computer algebra system (e.g., Mathcad). They are going to be a great tool for you throughout the chemical engineering curriculum. Any source you use in a report either from the Library or the Web have to be cited properly.
Grading Scale:
| Letter Grade | Percentage of Total Points |
| A | 90-100% |
| B | 80-89% |
| C | 70-79% |
| D | 60-69% |
| F | 59% or less |
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