Office Hours:1:00 - 2:00 PM, (Walk-Ins Welcome at Other Times Depending on Instructor
ME 215
THERMODYNAMICS I
SPRING 2005
Dr. Will Schreiber
280 Hardaway Hall
Telephone:348-1650
Email:
Network site:
Office Hours: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
Co-Requisite Skills: Students taking this course are expected to be enrolled (or to have taken) courses that teach students the following skills:
Course Objectives: Students who successfully complete this course can be expected to:
- 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-v-T 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 Thermo-dynamics 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:
- ME 305 – Thermodynamics II
- ME 309 – Heat Transfer
- ME 313 – Compressible Flow
TextThermodynamics,4th Edition, Cengal and Boles, McGraw Hill Publishing
Text Coverage:Material from chapters 1 - 6 in the text.
Attendance
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. Sometimes your absence from a class may be unavoidable. In such situations, it is advisable that you contact the instructor to submit homework problems and to obtain assignments prior to the class that you will have to miss.
Grading:
The final grade for the course will be based on the student's average score and will incorporate the plus/minus system.
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.
10%Homework Problems
Solutions to assigned homework problems will be collected andgraded. The two lowest homework grades will be dropped from the average to account for illnesses and other unavoidable situations.
15%Homework Quizzes
There will be a short 5 – 15 minute homework quiz at the beginning of Friday classes. The two lowest homework quizzes will be dropped from the average to account for illnesses and other unavoidable situations. Make-up homework quizzes will not be given under any circumstance.
50%Two fifty minute mid-term exams
On the two class periods designated for exams in the syllabus, a 25% 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.
25%Final exam
The final is scheduled for 7:00 – 9:30 PM Monday 2 May. Make-up final exams will not be scheduled.
SYLLABUS
ClassSubjectReading from Text
Required for Class
1)Units, thermodynamic terminology sections 1.1 – 1.4
2)Thermodynamic terminology, energy sections 1.5 – 1.8
3)Temperaturesection 1.9
4)Pressure sections 1.10 – 1.12
5)Phase change for pure substances, physicssections 2.1 – 2.5
6)Phase change for pure substances, diagramssections 2.1 – 2.5
7)Phase change for pure substances, tablessections 2.1 – 2.5
8)Ideal gas Equation of statesection 2.6
9)Compressibility factorsection 2.7
10)Ideal gas propertiessections 2.9 – 2.10
11)Solid and liquid propertiessection 2.11
12)Review of chapters 1 and 2
13)Exam # 1
14)Review test, Heat transfersection 3.1
15)Work section 3.2
16)Work sections 3.3 – 3.4
17)Conservation of masssection 3.5
18)Flow worksection 3.6
19)First law of thermodynamicssection 4.1
20)First law for a closed systemsection 4.2
21)First Law for a steady state open systemsection 4.3
22)Steady state devicessection 4.4
23)First law for unsteady flowsection 4.5
24)Review of chapters 3 and 4
25)Exam # 2
26)Review test, Introduction to the second lawsection 5.1
27)Heat enginessections5.2 – 5.3
28)Efficiencysection 5.4
29)Refrigeration systemssection 5.5
30)Reversible and irreversible processessection 5.7
31)Carnot cyclesection 5.8
32)Carnot principlessection 5.9
33)Carnot heat enginesection 5.11
34)Entropy section 6.1
35)Increase of entropy principlesection 6.2
36)Entropy change of pure substancessection 6.3
37)Isentropic processessection 6.4
38)T-ds relationssections 6.5 – 6.7
39)Entropy change of liquids and solidssection 6.8
40)Entropy change of ideal gasessection 6.9
41)Reversible worksection 6.10
42)Compressor worksection 6.11
43)Isentropic efficiencysection 6.12
44)Entropy balancesection 6.13
45)Entropy balancesection 6.13
46)Review for final