ME 4320
Thermodynamics  II
Spring 2018

Catalog Description:
Advanced topics including gas-vapor mixtures, combustion, and compressible flow.
3 cr.
Prerequisites:  (ME 2320 or CHEG 3200)  and (ME 3560 or CHEG 3110)


Instructor





Dr. Peter E. Parker
A244 Floyd Hall
voice:  616 276 3157
e-mail:  Peter.Parker@wmich.edu
course web page:  homepages.wmich.edu/~parkerp
office hours:    To be determined
or by appointment 
(Subject to change --- see my homepage for up-to-date information.)

Lecture: 

MW 2:30 – 3:50
C 123 Floyd Hall

Text:

Cengel, Y and Boles, M.   2011   Thermodynamics – An Engineering Approach.  8th ed.   McGraw-Hill
(Earlier editions are acceptable but you are responsible for ensuring that the reading assignments cover the same material and that the homework problems are identical.)

Course Objectives:

Prerequisites by topic:

Learning outcomes

Evaluation

Hour Tests(2) 40%  (20% each exam)
Final Exam 45%
Homework & Quizzes 15%
(Late homework will not be accepted!)

Exam Schedule

1st Exam: Wednesday, February 7.  (tentative)
2nd  Exam: Wednesday, March 14.  (tentative)
Final Exam: Thursday,  April 26 @ 12:30
All exams will be open book and notes.

Grading Scale
(tentative)

            A  92 –100 %              AB  88 – 91    B  80 – 87
BC 76 – 79                  C  69 – 75       CD  65 – 68
D  55 – 64                   E < 55

Work Ethic

While you may, and should, consult with others if you are having difficulty, all submitted work must be your own. Plagiarism and cheating will not be tolerated. All students are expected to comply with the WMU code of academic honesty     (http://catalog.wmich.edu/content.php?catoid=28&navoid=1169#stud_acad_cond)  Anyone found cheating will be given a failing grade in the course as well as being subject to Departmental and University actions.

 

Performance Criteria

All objectives will be measured through homework, quizzes, and exams.

 Objective 1 -Understand  the application of first and second laws of thermodynamics  to advanced energy analysis.

Students will demonstrate knowledge of the three laws by application to problems involving changes of both energy and mass. 

Students will demonstrate the ability to utilize exergy as a component in process analysis.

 Objectives 2 – 3 Understand the assumptions necessary for the analysis of the  “standard” power and refrigeration cycles and be able to use them in the analysis of power and refrigeration cycle. 

 

Students will be able to state the assumptions and conditions supporting the “air standard” cycle.
Students will be able to apply the first and second laws of thermodynamics to the analysis of “standard” power and refrigeration cycles.
Students will be able to define and analyze the Otto, Diesel, Stirling, and Brayton cycles.
Students will be able to use the steam tables to analyze steam Rankine cycles
Students will be able to analyze both vapor compression and absorption refrigeration cycles using thermodynamic property tables.

 Objective 4 - Understand the application of thermodynamics to combustion and chemical reaction and be able to analyze energy flows due to combustion and chemical reactions

Students will be able to write, balance, and determine the energy liberated from combustion reactions.
Students will be able to state the criteria for chemical equilibrium and apply equilibrium analysis to simple, ideal mixtures.


 

Schedule
(Tentative)
 


Introduction & Review 

Quick review of  introductory material and nomenclature

Week 1

Chapters 1 - 7

Exergy:  A measure of work potential 

Definition of exergy and its use as a process analysis tool

Week 2

Chapter 8

Gas Power Cycles

Power cycles; The air standard cycle;  Otto, Diesel, Brayton, Stirling cycles

Weeks 4 & 5  

Chapter 9

Vapor cycles

Rankine Cycle; Combined cycles

Week 6 & 7

Chapter 10

Refrigeration 

Vapor compression cycles
Absorption cycles

Weeks 7 &  8

Chapter 11

Thermodynamic Property Relations

Mathematics Interlude

Weeks 9 & 10

Chapter 12

Gas Mixtures / Humidity

Properties of mixtures;
Humidification

Week 11 

Chapters 13 & 14

Energy from Combustion

Combustion reactions;
Heats of reaction

Week 12

Chapter 15

Chemical Equilibria

Equilibrium concepts; Equilibrium criteria;
Equilibrium computation

Weeks 13 & 14

Chapter 16.

 

Course Policies:  (Adapted from those of  Dr. Fajardo-Hansford for ME 4320)


 

 

1) Homework: Problem sets will be assigned as homework every Wednesday unless specified otherwise by the instructor.  Homework assignments will be given in class  and posted on the class web page.  Homework is due every Wednesday at the beginning of lecture the week after it is assigned unless otherwise specified by the instructor.  You will not receive any credit for late homework.  Please read and follow the homework guidelines given below.

2) Midterm(s) and Final Exam: Any missed tests will be graded as “zero” and no make-up tests will be given except in the case of a family or medical emergency.   If the test has been missed due to an family or  medical emergency, the student must contact the instructor immediately by phone and/or email and provide the instructor with a written doctor’s statement.  At the discretion of the instructor, the missed test  may be made-up or the final grade calculation adjusted.  All students must attend the final examination.

3) Exam and homework re-grades.  A request for a re-grade will be honored provided the student submits the request in writing within a week of receiving the graded work back from the instructor.  In such cases, the instructor reserves the right to re-grade the entire submission.

4) You are expected to arrive on time.  Attendance to lecture is critical to succeed in ME 4320.

5) If you need or expect a particular grade in this course, it is your responsibility to work hard, efficiently and to learn the material to achieve your goal.  Do not expect any “curving” or grade adjustments to satisfy your objective.

6) If you are having problems understanding the material, contact me early in the semester.

7) We will use the required textbook extensively throughout the course.  Bring your textbook to every lecture.  No textbook sharing is allowed during exams.   I recognize that textbooks are expensive and there appears to be little change between editions.   The use of an earlier edition of the text is perfectly acceptable but it is your responsibility to ensure  that you read the appropriate material and that the homework problems are identical.

8) Turn off cell phones and any other audible devices during class.

9) Refrain from using laptops and other electronic devices during class.

10) If you need to miss class due to flu symptoms, contact me immediately via phone and/or email to make any necessary course-related arrangements.  You will be responsible for the material covered during your absence and for turning in your homework (e.g., via email, fax, classmate) before or on the due date.  I will contact you via email if I need to cancel or postpone a class for to medical reasons.   


 

Guidelines for Submitting Assignments and Exams
(with permission of Dr. Andrew Kline)

Attached are formats and guidelines for ME 4320

Homework Guidelines

1.         Unless a problem is extremely short (less than one-half sheet of paper), start each problem on a new sheet of paper.
2.         Number all pages in consecutive order, in the order that you want them graded.  Include the problem number with your solution.
3.         Use only engineering notepad paper for hand written calculations. 
4.         Use only one side of the paper.
5.         Medium to dark pencil is preferred.   Dark blue or black ink is also acceptable.
6.         Box in all final answers.
7.         If spreadsheets or other computer generated items are submitted, a printout of the equations used and an example calculation of how each equation was used is required.
8.         Equipment items, process streams, and other variables used in your solution will be clearly labeled on a process flow diagram (PFD).  Organizing your process stream information into a material balance table is highly recommended.   The equipment and stream labels will be used in your accompanying hand-written calculations so that the reader may cross-reference your calculations to your PFD and the material balance table.
9.         Materials used in your solution that are not considered “general engineering knowledge” will be referenced as to their source.   Such material would include heat capacities, vapor pressure values, equipment design equations, or prices of equipment or commodities.  A note will be written in your calculations where the information is used, giving the author, year published, and page number.  A complete citation will be included on a reference page to be included with your solution.

 

Warning:   Turning in a large stack of printed outputs from a process simulator or an equation solving software program is not acceptable.  This type of information must be summarized into a concise format and presented with appropriate equations and supporting calculations (see item 7).

Homework assignments that do not follow this format, or that so poorly follow the format as to be difficult to review for grading purposes will be returned to the student.  The student will have three business days to resubmit their revised solution using the accepted format, with an automatic reduction of one full letter grade for that assignment.  Submitting an unacceptable format a second time for the same assignment will result in a grade of zero for that assignment.

 

Late homework assignments are not accepted, unless the student has arranged for an excused absence from class.


Exam Guidelines

Exams use comprehensive open-ended problems that often have multiple solution methods that reach a single correct answer.  For this reason, they are extremely time consuming to grade.   You will use the format given below during exams in order to organize your solutions.

1.         As mentioned in your syllabus, all exams are open book.  You are not allowed to exchange or share a book with another student during the exam.
2.         Bring your calculator and pens or pencils.  You are not allowed to exchange or share a calculator, pens, or pencils with another student during the exam.
3.         Bring your own engineering notepad paper  or “blue books” to exams.  It is not the responsibility of the proctor to provide this for you.  
4.         Unless a problem is extremely short (less than one-half sheet of paper), start each problem on a new sheet of paper.  This includes subsections of a numbered problem, e.g. Problem 1, a through e.  Include the problem number with your solution.
5.         Use only one side of the paper.
6.         Medium to dark pencil is preferred.   Dark blue or black ink is also acceptable.
7.         Box in all final answers.
8.         If you do not wish a portion of your calculations to be considered (i.e. you made an obvious mistake in a calculation in the middle of a page), and you do not erase it, put a large “X” through it.  This material will not be considered for grading.
9.         Draw an appropriately labeled PFD, and use a material balance summary table, when applicable.   Use the labels on your PFD to help show and document your method of solution and your thought process.
10.       Organize your work.  Include problem numbers that are on the exam.  For example, if Problem 1 has parts a, b, c, and d, make sure your solution clearly shows where each of these parts begins.  Neatness does count (see number 16).
11.       Include labels on each material balance (i.e. Overall balance on system; Overall component balance for benzene, etc.), or use other labels (e.g., Bernoulli equation; Raoult’s law) so that I can follow what you are trying to do.
12.       Materials used in your solution that are not considered “general engineering knowledge” or are not given in the exam statement must be referenced as to their source.   Such material would include heat capacities, vapor pressure values, equipment design equations, or prices of equipment or commodities.  Given the time constrains on an exam, a complete citation is not necessary, but you must give a brief citation, such as author and page –e.g.  Cengel & Boles,  pg 200. 
13.       Show all equations used, what numbers are substituted into the equation, and the result from an equation.   Numbers that suddenly appear on a page (i.e.  F = 100.9 lbm/hr), will receive zero credit towards your exam grade, even if the number is correct.   The instructor can only grade what you turn in as part of your written solution, not what was pre-programmed into your calculator.
14.       Make sure your name is on every sheet that you submit as part of an exam solution.

            The order of submission of your solution to an exam:

 

15.       Exams that do not follow the appropriate format for documenting your solution, follow the format poorly, or the handwriting is messy to the point where it is difficult to read will have points deducted from the exam score.   A minimum of 5 points will be deducted, and up to a maximum of 25 (total points on an exam are 100).
16.       If you have any questions during the exam as you are working on it, please raise your hand, and I will come to you.  I will not answer any questions during an exam that I feel are inappropriate, or are about concepts or topics that you should know before coming to the exam.
17.       All electronic communication devices are to be turned off  during an exam.  Computers are not permitted.