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ME 215
THERMODYNAMICS I
SUMMER 2006
Dr. Will Schreiber
280 Hardaway Hall
Telephone:
Email:
Network site:
Office Hours:
348-1650
[email protected]
www.me.ua.edu\me215\
1:00 - 2:00 PM, (walk-ins welcome at other times depending on instructor availability)
Course Description: An introduction to the principles of conservation of energy and efficiency of the
conversion of energy into work through the first and second laws of thermodynamics. The course is
subdivided into the topics of defining the properties of matter, application of the first law of
thermodynamics to open and closed systems, and the application of the second law of thermodynamics to
open and closed systems.
Pre-Requisite Skills: Students entering this course are expected to have mastered the following skills:
 MATH 126
 Evaluate definite integrals
 Obtain partial derivatives for functions with two or more variables.
Course Objectives: Students who successfully complete this course can be expected to:
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Explicitly define the phase of a thermodynamic working fluid through the use of phase diagrams.
Use tables of thermodynamic data to find the properties of any thermodynamic state. (a1)
Identify when a vapor behaves as an ideal gas and use the ideal gas equation of state to obtain p-vT data. (a1)
Define system boundaries, and calculate the work crossing the system boundaries with the correct
sign connotation and units (e)
Calculate the work of a simple compressible closed system undergoing a quasi-static process. (e)
Calculate net heat and work interactions using the First Law of Thermodynamics for a system
undergoing a cycle and for a closed system. (e)
Calculate steady state mass flow rates for one-dimensional flows using the principle of
conservation of mass to a control volume undergoing a steady flow process. (e)
Calculate heat transfer rate and power for the control volume using the First Law of
Thermodynamics to a control volume undergoing a steady-state, steady-flow process. (e)
Calculate heat transfer rate and power for the control volume using the First Law of
Thermodynamics to a control volume undergoing a uniform-state, uniform-flow process. (e)
Define the operation of a heat engine and refrigerator. (a1)
Know the implications of the Second Law of Thermodynamics as related to heat engine and
refrigerator performance though the Kelvin-Planck statement and Clausius statement. (a1)
State the definition of a reversible process and factors that make processes irreversible. (a1)
Calculate the thermal efficiency and net work output of a Carnot reversible heat engine. (e)
Calculate the appropriate performance parameters for a Carnot engine and use these parameters to
ascertain the validity of stated performance of other engines. (e)
Ascertain the validity of stated performance of cyclic devices using the Inequality of Clausius from
a second law perspective (e)
Define the entropy change of a given system through tables of thermodynamic data or appropriate
equations. (e)
Ascertain the validity of first law calculations and use T-s diagrams to show system irreversibilities
or losses. (e)
Apply the Second Law of Thermodynamics to the steady-state, steady-flow and uniform-state,
uniform flow processes in control volumes. (e)
Apply component efficiency to calculate the performance of devices undergoing non-ideal
processes. (e)
Downstream Users: This course serves as a pre-requisite to the following courses at The University of
Alabama:
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Text
ME 305 – Thermodynamics II
ME 309 – Heat Transfer
ME 313 – Compressible Flow
Fundamentals of Engineering Thermodynamics, 5th Edition, Moran and Shapiro, John Wiley
Publishing
Text Coverage: Material from chapters 1 - 6 in the text.
Attendance and Daily Preparation:
Regular attendance is an important factor in learning this difficult material. It is important that you not only
be present for all the classes but be prepared for each class as well. Your preparation should include the
completion and understanding of assigned homework problems and reading. Given the rapid rate we will
be covering new topics during the shortened summer session, you will soon realize that the course could
become intractable if you fall behind. Keep up!
Web site:
A web site, www.me.ua.edu\me215, will be maintained for the course. On this site you will find
assignments posted before the due date and homework and exam solutions posted after this work is
completed and turned in. It is recommended that you use this site on a daily basis to stay current with the
material being covered in class.
Grading:
The final grade for the course will be based on the student's average score and will incorporate the
plus/minus system.
10%
Homework Preparation
Homework in the form of reading assignments and problem assignments will be made for each class period.
You may work in groups on homework problem solutions. It is important, though, that each group member
participates in deriving the solutions and understands the solution procedure for each problem. Each
student should turn in homework problems, even if the work was done in a group. Solutions to homework
problems will be collected at the beginning of class. One or two representative problems will be graded.
The lowest homework grade will be dropped from the average to account for illnesses and other
unavoidable situations. Homework will not be accepted after it has been collected under any
circumstance.
60%
Two one-hour mid-term exams
On each of the class periods denoted in the syllabus, a 30% exam will be given over the material covered
previously. Make-up exams will not be scheduled except 1) for a valid reason and 2) only when
instructor has been informed prior to the date of the exam.
30%
Final exam
The final is scheduled for Friday, July 7, 8:00 – 10:30 AM. Make-up final exams will not be
scheduled. (Yes, the final exam is comprehensive.)
Quest
Students taking the course via distance education will have 7 days longer than “in-class” to submit
homework and to return exams back to me. Assignments will be posted on the web as they are made to the
in-class students, and exams will be emailed to your proctor as I make them up, so you will not need to
depend on the tapes to obtain homework assignments or to take the exams.
Syllabus
Class
Subject
Reading from Text
Required for Class
1.
Thermodynamic systems
sections 1.1 – 1.3
2.
Review of units
section 1.4
3.
Pressure, specific volume, temperature
sections 1.5 – 1.6
4.
Energy, work, and heat
sections 2.1 – 2.4
5.
First law of thermodynamics, conservation of energy
section 2.5 – 2.6
6.
Review
7.
Exam # 1 and review
8.
Two-phase thermodynamic properties
sections 3.1 – 3.3
9.
Compressibility chart
section 3.4
10.
Ideal gases
sections 3.5 – 3.6
11.
More ideal gases
section 3.7 – 3.8
12.
Conservation of mass and energy for control volumes
sections 4.1 – 4.2
13.
Control volume analysis
sections 4.3 – 4.4
14.
Review
15.
Exam # 2 and review
16.
Introduction of second law
sections 5.1 – 5.2
17.
Second law and cycles
section 5.3 – 5.4
18.
Carnot cycle
sections 5.5 – 5.6
19.
Entropy
sections 6.1 – 6.4
20.
Entropy balance
sections 6.5 – 6.7
21.
Applied entropy
sections 6.13
22.
Review for final