Course Goal: CHEN 205 - Chemical Engineering Thermodynamics I, Credit 3 (3-0) Fall 2009, TuTh 9:35 10:50, Brown 104 (a) To introduce students to the fundamental concepts and laws of thermodynamics; and (b) to teach students how to apply the fundamentals of thermodynamics to various processes, phase/reaction equilibrium as they frequently occur in chemical and biomolecular engineering Instructor: Dr. Zhilei Chen 242 Brown 979-862-1610 Zhilei.Chen@chemail.tamu.edu Office hours: TuTh 10:50 11:30 (or by appointment via E-mail) Feel free to come and find me any day after 5:30 PM (no guarantee). Required Textbook: Introduction to Chemical Engineering Thermodynamics, 7th edition, J.M. Smith, H.C. Van Ness, M.M. Abbott, McGraw-Hill, New York, 2005. Prerequisites: Basic understanding of mass and energy balances, equilibrium relationships, and engineering mathematics (CHEN 204, MATH 251). Attendance Policy: Attendance is important and implicitly considered in participation grade. Course Description (number of lectures): Zeroth, first law of thermodynamics (2) Volumetric properties of pure fluids (3) Heat effects (3) Second law of thermodynamics (4) Thermo properties of fluids (3) Applications to flow processes (2) Power cycles (2) Refrigeration (1) Method of Evaluation: Mid-semester exams 55% Final 30% Homework 10% (approximately weekly) Instructor Discretion 5% (class participation, etc) Teaching Assistant: Kristina Kristina.Golub@chemail.tamu.edu Office hours/discussion: Monday 12-1pm Brown Building 626 Final Exam: Closed-book. Dec 5 9am - 12noon Page 1 of 5 Printed: 9/1/09
Course Outcome: 1. Define units of pressure, temperature, density, mass, and moles, SI and English system, and use conversions. 2. Use thermodynamic tables and diagrams and apply equations of state, such as the Ideal Gas Law. 3. Understand the difference between steady-state and transient processes, open and closed systems. 4. Describe the meaning of specific volume, enthalpy, and internal energy, and how to obtain them from thermodynamic tables and diagrams. 5. Identify the difference between heat and work, isentropic and isenthalpic processes. 6. Apply mass and energy balances (First Law) to a variety of processes and circumstances. 7. Define the meaning of isentropic processes: obtain entropy from thermodynamic tables and diagrams. 8. Define the meaning of efficiencies in turbines, compressors, and pumps, and use them to solve problems. 9. Obtain changes in internal energy, enthalpy, and entropy by using equations, tables, diagrams, and fundamental properties, such as Cp and Cv. 10. Identify power and refrigeration cycles and calculate their efficiencies. Course Policy: 1. Course Web Page. All course related information such as problem sets and their solutions will be available on the course website at: vnet.tamu.edu Problem Sets. Homework assignments will be announced on the course web site. Completed problem sets are to be turned in at the beginning of the Lecture on the date it is due. Joint discussion of problem solutions is acceptable, however, copying is not (plagiarism!). Late problem sets will not be accepted, and missed problem sets will receive a grade of zero. 2. In-Class Exams. Unexcused in-class exams will receive a grade of zero. Permission for makeup exams must be approved by Professor Chen and will be given only in case of an emergency verified by note from the emergency dean. You must notify Professor Chen within 24 hours of the scheduled exam period, and you must provide a signed, written letter on official letterhead stationery from the emergency dean justifying your absence. This must be provided prior to the makeup exam. Professor Chen reserves the right to not give a make-up exam but to use instead the average of the student s other in-class exams adjusted relative to the class averages. 3. Exam Regrades. After the exams are returned, all students will have until the beginning of the second lecture following the day the exam was returned to provide written appeal of the exam score. Exam regrades will involve a regarding of the entire problem in question. If a request is made for more than one problem, the entire exam will be regarded. Page 2 of 5 Printed: 9/1/09
Course Schedule (Tentative): Tuesday Thursday Sep 1 1 Introduction Sep 3 2 First Law Sep 8 2 First Law Sep 10 3 Volumetric Props of Fluids Sep 15 3 Volumetric Props of Fluids Sep 17 3 Volumetric Props of Fluids Sep 22 Exam 1 Sep 24 4 Heat Effects Sep 29 4 Heat Effects Oct 1 4 Heat Effects Oct 6 5 Second Law Oct 8 5 Second Law Oct 13 5 Second Law Oct 15 5 Second Law Oct 20 Exam 2 Oct 22 6 Thermo Properties of Fluids Oct 27 6 Thermo Properties of Fluids Oct 29 6 Thermo Properties of Fluids Nov 3 No Class Nov 5 No Class Nov 10 7 Flow Processes Nov 12 7 Flow Processes Nov 17 8 Heat Power Nov 19 8 Heat Power Nov 24 Exam 3 Nov 26 Thanksgiving break Dec 1 8 Heat Power Dec 3 9 Refrigeration & Liquefaction Dec 8 9 Refrigeration & Liquefaction Dec 10 Review, Q&A Note: Numbers refer to book chapter numbers. Final Exam: Dec 12 9am - 12noon American with Disabilities Act Policy Statement: The Americans with Disabilities Act (ADA) is a federal antidiscrimination statute that provides comprehensive civil rights protection for persons with disabilities. Among other things, this legislation requires that all students with disabilities be guaranteed a learning environment that provides for reasonable accommodation of their disabilities. If you believe you have a disability requiring an accommodation, please contact the Department of Student Life, Services for Students with Disabilities in Cain Hall or call 845-1637. Scholastic Dishonesty: As commonly defined, plagiarism consists of passing off one s own the ideas, work, writings, etc., which belong to another. In accordance with this definition, you are committing plagiarism if you copy the work of another person and turn it in as your own, even if you should have the permission of that person. Plagiarism is one of the worst academic sins, for the plagiarist destroys the trust among colleagues without which research cannot be safely communicated. If you have questions regarding plagiarism, please consult the latest issue of the Texas A&M University Student Rules, under the section Scholastic Dishonesty. Page 3 of 5 Printed: 9/1/09
Academic Integrity Statement An Aggie does not lie, cheat, or steal or tolerate those who do. Honor Council Rules and Procedures http://www.tamu.edu/aggiehonor Academic Integrity Task Force, 2004 http://www.tamu.edu/aggiehonor/finaltaskforcereport.pdf Team Policies and Expectations Team composition and responsibilities You will be assigned to three- or four-person teams. Your team will have a number of responsibilities as it completes problem and project assignments. 1) Designate a coordinator, recorder, and a monitor for each assignment, with each of these roles having responsibilities defined below. Rotate these roles for every assignment. 2) Agree on a common meeting time and what each member should do to prepare for the meeting. 3) Do the required individual preparation. Each team member should attempt to outline the solution of each problem before the team meets. 4) Meet and work out the complete solutions to all assigned problems. Agree on next meeting time and roles for next assignment. 5) Review returned assignments. Make sure everyone understands why points were lost and how to correct errors. 6) Consult with the instructor if a conflict arises that cannot be solved by the team. Team roles 1) Coordinator checks with other team members before the meeting to remind them of when and where they will meet and what they are supposed to do, keeps everyone on task and makes sure everyone is involved during the meeting. 2) Recorder prepares final solution to be turned in. 3) Monitor makes sure everyone understands both the problem solutions and the strategies used to get them. Note to monitors: If you ask people if they understand something and they say yes, you've learned nothing. To check for understanding in a way that means something, ask for an explanation. If someone on a team misses a problem on a test that is very much like a homework problem, the monitor has not done his/her job. Omitting names from completed assignments If a student's name appears on a solution set, it certifies that he/she has participated in solving EACH of the homework problems in a given problem sets. If a team member refuses to cooperate on an assignment, his/her name should not be included on the completed work. Group work isn't always easy: team members sometimes cannot prepare for or attend group sessions because of other responsibilities, and conflicts often result from differing skill levels and work ethics. When teams work and communicate well, however, the benefits more than compensate for the difficulties. One way to improve the chances that a team will work well is to agree beforehand on what everyone on the team expects from everyone else. Page 4 of 5 Printed: 9/1/09
Relationship of course objectives to ChE program outcomes CHEN Course Outcomes Program Outcomes 1. Define units of pressure, temperature, density, mass, and moles, SI and English system, 1, 2, 3, 5, 7 and use conversions. 2. Use thermodynamic tables and diagrams and apply equations of state, such as the Ideal 1, 2, 3, 5, 11 Gas Law. 3. Understand the difference between steady-state and transient processes, open and closed 1, 2, 3, 5, 11 systems. 4. Describe the meaning of specific volume, enthalpy, and internal energy, and how to 1, 2, 3, 5, 11 obtain them from thermodynamic tables and diagrams. 5. Identify the difference between heat and work, isentropic and isenthalpic processes. 1, 2, 3, 5, 11 6. Apply mass and energy balances (First Law) to a variety of processes and circumstances. 1, 2, 3, 5, 11 7. Define the meaning of isentropic processes: obtain entropy from thermodynamic tables 1, 2, 3, 5, 11 and diagrams. 8. Define the meaning of efficiencies in turbines, compressors, and pumps, and use them to 1, 2, 3, 5, 11 solve problems. 9. Obtain changes in internal energy, enthalpy, and entropy by using equations, tables, 1, 2, 3, 5, 11 diagrams, and fundamental properties, such as Cp and Cv. 10. Identify power and refrigeration cycles and calculate their efficiencies. 1, 2, 3, 5, 11 Page 5 of 5 Printed: 9/1/09