Chemical Engineering Calculations Essay Sample

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Quantitative applications of steady-state mass and energy balances to solve problems involving multi-component systems and multi-unit chemical processes. Single-component and multi-component phase equilibria, single-reaction and multiple-reaction stoichiometry, coupled mass and energy balances, chemical processes involving bypass and recycle streams. C. Prerequisites: Chemistry 116 or Chemistry 136; Mathematics 161 (or equivalent); Physics 152 (or equivalent) D. Course Text: Elementary Principles of Chemical Processes (2005 Edition) with Integrated Study and Media Tools by R. M. Felder and R. W. Rousseau. Wiley and Sons, 2005, ISBN: 978-0-471-68757-3. E. Course Learning Objectives. By the conclusion of the semester, class participants should be able to:

1. Work professionally and ethically as a member of a chemical engineering team. 2. Understand the diverse social, economic, and environmental issues associated with being a chemical engineer 3. Understand, apply, and convert between English and metric units in order to design chemical engineering unit operations and multiunit operations. 4. Derive the hydrostatic equation in order to determine the results of the equation in the utilization of manometers in chemical engineering practice. 5. Apply the law of conversation of mass and conservation of atomic species in order to solve mass balances in unit operations with and without chemical reactions and with and without recycle streams. 6. Determine, using first principles and well-established correlations, the relations between thermodynamic equilibria and multiphase systems. 7. Integrate the first law of thermodynamics with the concept of energy balances in unit operations with and without chemical reactions and with and without recycle streams.

8. Apply the laws of conservation of mass and energy and thermodynamic equilibrium data in order to formulate solutions for mass and energy flow rates in multiunit systems. 9. Understand and apply the concepts of transient mass balance problems in order to develop a basis for non – steady state applications. 10. Design multiunit chemical processes using steady-state and transient mass and energy balances in order to create multiunit operations similar to those in future courses and applications in industry. F. Course Outcomes. By the end of the course, the student should be able to (numbers in parentheses refer to ABET program educational objectives listed in Section G): 1. Estimate physical properties of real chemical systems (1).

2. Evaluate introductory single-component and multi-component phase equilibria and incorporate these concepts into solutions of mass and energy balance problems (1, 3). 3. Solve steady state and transient mass and energy balance problems for both reacting and non-reacting systems with or without recycle using analytical and computational methods (1, 3, 5). 4. Work professionally and ethically in teams to solve new mass and energy balance problems (1, 3, 4, 6, 7). 5. Discuss contemporary chemical engineering problems including their societal, environmental, and global impacts (8).

G. School of Chemical Engineering Program Outcomes for ABET. Graduates of the School of Chemical Engineering at Purdue University will: 1. Be able to apply mathematics, science, and engineering principles to solve a wide range of open-ended chemical engineering problems using critical thinking and creative problem solving. 2. Be able to design and conduct experiments, analyze and interpret data, and apply the results to chemical systems and processes. 3. Be able to design a system, component, or process to meet desired technical, economic, safety, and environmental criteria. 4. Be able to cooperate successfully as a member of a productive team by using their awareness of leadership and group dynamics issues. 5. Be able to utilize the techniques, analytical skills, and modern computational tools necessary for successful chemical engineering practice.

6. Understand and appreciate the need for professional integrity and ethical decision making in the professional practice of chemical engineering. 7. Demonstrate their knowledge by presenting information in a logical, interesting way in both oral and written forms. 8. Demonstrate an understanding of contemporary issues encountered in the professional practice of chemical engineering including business practices, environmental, health, and safety issues and other public interests. Our graduates will be aware of the wide-reaching effects that engineering decisions have on society, our global community and our natural environment. 9. Appreciate the need for and engage in life-long learning to maintain and enhance the professional practice of chemical engineering. H. Academic Integrity, Community, Professional Conduct and Ethics. Group homework assignments will be accompanied by a community-building exercise. These are designed to help you learn to work with, appreciate, and value people who may not be like you.

The goal is to help each Purdue Chemical Engineering graduate be ready to work with a wide range of colleagues with great success, and be able to create a welcoming environment for diverse colleagues. You will be expected to take these exercises seriously and to support this goal of the course. Any homework submitted which does not include a quality community-building exercise will have its grade reduced by one letter grade. This is discussed in more detail below under the heading “Conduct”. I. Expectations. This is a 4 credit hour course, and it is expected that each student will spend 12 hours each week working homework, studying, and reading the course text (3 hours/credit). Students should expect this to be the case for all of Chemical Engineering courses. Most students who enroll in Chemical Engineering did very well in high school without having to study very hard. In many cases, the freshman year is harder than high school, but is manageable with noticeably less effort than described above. This class, and all subsequent Chemical Engineering classes, will be much more challenging than anything that most students will have seen before.

J. Conduct. University policy states that it is the responsibility of all students to attend all class sessions


Each student is expected to come to class on time and not disrupt the class. Each student is also expected to follow Purdue’s codes of student conduct ( and behave in a professional manner. The rights of students in violation of the code of conduct are outlined. Each student is expected to exhibit consideration and respect towards the other students, the graders, the teaching assistants (TAs), and the faculty,. Each student is expected to exhibit a positive attitude. Each student is expected to forth his/her best effort in the community-building activities, and students who engage in activities that conflict with these exercises will have their grade reduced. Your conduct will be a factor in awarding grades to students between two letter grades.

Purdue University’s student conduct policy specifically addresses academic dishonesty. All incidents of academic dishonesty will be reported to the Dean of Students. Such incidents include: i) possessing or accessing, in hardcopy or electronic form, the solution manual to the course text, to the Sapling problems, or to the exams, ii) claiming credit for work (either HW or exam work) that is not your own original work, and iii) enabling another student to create HW or exam work that is not their original work. 2

K. Course Material as Listed by Text Chapter. Chapters 1, 2, 3 (self-taught) Chapter 4: Fundamentals of Material Balances Chapter 5: Single Phase Systems Chapter 6: Multiphase Systems Chapter 7: Energy and Energy Balances Chapter 8: Balances on Nonreactive Processes Chapter 9: Balances on Reactive Processes Chapter 11: Balances on Transient Processes

L. Instructor Contact Information. a. Professor Stephen P. Beaudoin – Email: [email protected], Telephone: 4-7944 Office: 1019 Forney Hall Office Hours: Tuesday, 1-2 p.m. ; Tuesday, 2:30 – 3:30 p.m.; Thursday, 1-2 p.m. or any time not before class on Monday, Wednesday, or Friday if the door is open. M. Teaching Assistant (TA) Contact Information. a. Melissa Sweat – [email protected], 4 – 6251 Office Hours: Thursday, 9:30 – 10:30 a.m.; Thursday, 3:30 – 5:30 p.m. Room for Office Hours: FRNY 3062B N. Instructor’s Commitment. Prof. Beaudoin will: 1) be courteous, punctual, well-organized, and prepared for lecture and other class activities; 2) answer questions clearly in class or arrange for detailed discussions out of class if in-class answers are not suitably clear; 3) be available during office hours or notify you beforehand if I am unable to keep them; 4) provide a suitable guest lecturer when I am traveling; and 5) grade uniformly and consistently to the posted guidelines.

O. Consulting with Faculty Member. Prof. Beaudoin strongly encourages you to discuss academic or personal questions with him if you feel I can be helpful, either during my office hours or via email. These discussions need not be limited to ChE 20500 content. P. Assessment of Course Outcomes. A weighted average grade will be calculated as follows: Recitation quizzes: 10% Homework: 15% Examinations (3 exams): 16.67% each = 50% total Final Examination: 25% The grading scale will be as follows. A: 100 – 85% of the weighted points B: 85 – 75% of the weighted points C: 75 – 65% of the weighted points D: 65 – 55% of the weighted points F: Less than 55% of the weighted points Any student earning a score of 100% on the final exam automatically earns a grade of ‘A’ in the course. If an exam or homework was too difficult (as judged by Prof. Beaudoin), the final grade may be scaled upwards (add points to an exam or homework score). Grades will never be scaled downward. As a rule, scaling will not be applied.

There is no preset distribution of final grades. The grading will reflect demonstrated student capability relative to an absolute performance standard that is expected of all Purdue ChE students, rather than any (arbitrary) relative scale. Practically speaking, this means that if all students in the class attain a high level of mastery of the course content, then all course grades could be A marks. Q. Campus Emergencies. In the event of a major campus emergency, course requirements, deadlines and grading percentages are subject to changes that may be necessitated by a revised semester calendar or other circumstances beyond Prof. Beaudoin’s control. In these cases, you can obtain course info from Prof. Beaudoin via phone or email (above), or from the course Blackboard Page: ChE 20500 – 001. 3

R. Bereavement Policy. Purdue University recognizes that a time of bereavement is very difficult for a student. The University therefore provides rights to students facing the loss of a family member through the Grief Absence Policy for Students (GAPS): Students who find themselves in need of assistance in a time of bereavement should contact Prof. Beaudoin or Boudouris privately to discuss specific needs. S. Individual Learning and Testing Needs. Any student who feels s/he may need an accommodation with any aspect of the course based on a personal circumstance should contact me privately to discuss your specific needs. If you are a student with any form of learning disability, please speak with me whether or not you seek an accommodation so that we are aware of your circumstance and can deliver course content in a manner that is most compatible with your situation.

T. Attendance. University policy states that it is the responsibility of all students to attend all class sessions ( You will be expected to attend all lectures. U. Illness. Viruses and other forms of illness are a legitimate threat to the safety of all in our society, and in our Purdue community. There is a high likelihood that individuals at Purdue will contract some sickness, in spite of all efforts to prevent this occurrence. If a student becomes sick, s/he should seek prompt medical attention, and then not come back to class until s/he has been symptom-free for more than 24 hours. A note from P.U.S.H. is required to document illness.

Materials will be made available electronically to assist any students who are ill, and reasonable accommodations will be made on an individual basis to ensure that all students have the opportunity to learn. In the event of a severe outbreak of illness at Purdue that mandates class not meet, all attempts will be made to deliver the course online through Blackboard. V. Course Meeting Schedule.

V. Paper Homework. As a general rule, weekly homework assignments will be collected in class at the beginning of lecture. Homework will be completed individually or in assigned groups, depending on the assignment. Begin each problem on a new sheet of paper, staple pages in order, and number the pages. The solution to each problem must include a picture or flow chart (hand or computer-generated) of the system or problem of interest, a listing of the known quantities and their units of measurement, and a listing of the unknown quantities that must be determined. If your solution to a problem does not contain these items, it will not be graded and you will receive a grade of zero for that problem. If your homework is not submitted at the start of lecture it is considered late. This means that if you wish to take your homework back and add more content at any time after the start of lecture, then the entire homework is considered late. There will be 5 HW problems/assignment, and these must be handed in separately.

This means that you will hand in problem 1 with the cover page, and then separately hand in problem 2, problem 3, problem 4, and problem 5. The names of all group members go on each solution. Homework solutions will not be posted. It is your responsibility to get help either before the problems are due or after they have been submitted for grading. W. Homework Cover Page. Each homework assignment must have a cover sheet. A template of the cover sheet is posted on the Blackboard course page. The cover sheet must contain the printed first and last names of the group members, the date, the recitation information, and the homework assignment number in the appropriate locations. Below this identifying information, the following statement MUST appear: “Each signature below attests that the signer contributed significantly to the solution of all problems in this homework assignment”

All team members who contributed must sign and print their names next to the signature. The signature and printed names must be clearly legible. IF A TEAMMATE DID NOT PARTICIPATE IN THE SOLUTION OF THE HOMEWORK, THEN THIS TEAMMATE SHOULD NOT SIGN. If multiple groups worked together, indicate that on the cover page. Otherwise, identical solutions will be regarded as cheating. If this page is not present, the homework will be awarded a grade of zero and will be returned ungraded. If a team member does not participate in the solution of all the problems on the assignment, that team member will receive a grade of zero on the entire homework assignment. X. Homework Grading. Individual homework grades for each student will be assigned based on group performance and peer assessment of the student’s contribution. Homework will be graded on the basis of 10 points per problem.

A problem worked perfectly or with 1 or 2 minor errors will get 10 points. A problem with more than 2 minor errors but no major (logic) errors will get 7.5 points. A problem with 1 major error or more than 3 minor errors will get 5 points. A problem with more than 1 major error will get 2.5 points. A problem with no credible effort will get zero points. Not all homework problems will be graded. For problems that are not graded, students will simply receive a grade of A (acceptable effort) or NA (not acceptable effort). Students are responsible for learning how to solve all problems, whether or not they are graded. Y. Late Homework. All assignments are due by 10:35a on the assigned day, unless specific information is provided to the contrary. If your homework is not submitted by 10:35a on the day it is due, then it is late. It is your obligation to have it fully completed and submitted on time. Late homework will be graded, with a maximum grade of 50% of the possible total, and will be accepted no more than two days past the due date.

If a homework assignment is incomplete when it is submitted, and the remaining content is added after the assigned date and time, the entire homework will be considered late. If the missing content is added prior to the assigned date and time, then the homework will not be considered late. Z. Peer Assessment. Each student’s overall homework grade will be influenced by the peer ratings of the student’s contribution to each assignment. Each team member must turn in the peer assessment form separately from the homework and project. This page is available on the Blackboard page. All ratings will be confidential. These ratings should reflect each student’s level of participation, effort, responsibility, professionalism, and collaboration, not their academic ability. Individuals whose peer assessments are consistently low (scores of 3 or below in the three categories below) will have their homework grade reduced by the equivalent of 1 letter grade.

In addition, students who consistently do not participate in the solution of the HW by their team, or who consistently behave poorly when working with their team, will be removed from their team and will complete all subsequent homework assignments individually. AA. Examinations. For each examination you will be supplied with one or more pages of relevant equations. You will not be allowed to use any books or notes in addition to these equations pages, which means that all you will be allowed to have on your desk during the examination period is: the exam itself, the notes pages provided, the paper on which you are writing solutions, something to write with, and a calculator. All other electronic devices are forbidden, including cell phones and pagers. These must be turned off and may not be handled at any time during the exam. Students caught with other materials during an exam will be assumed to be cheating.

The final exam is comprehensive (i.e., it will cover the entire contents of the course). BB. Request for Re-grading of Examinations. A student has one week after an exam or homework has been returned to discuss any misgrading, after which grading errors will not be discussed. If a student believes work was misgraded, it must be resubmitted. The resubmission must be accompanied by a separate sheet of paper that documents the error in question. This is the only mechanism for addressing potentially misgraded work. Any papers submitted for re-grading will be re-graded in their entirety and may be marked lower than the original scored that was received. Re-grade requests will not be accepted until after the exam solutions have been posted and students have compared their solutions to the posted solutions.

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