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Professor Euiwon Bae
Office Hours : MWF 2:30-3:30 in ME1091Email : [email protected] : 765-494-6849Course website : http://engineering.purdue.edu/ME200
ME200 : Thermodynamics ILecture 1 : Introduction & Systems
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Outline
Course policy & Syllabus
Introduction
Defining systems
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Divisions
ME 200 Thermodynamics is taught by five instructors
Division 1 3:30 PM (MWF) Dr. S. Naik
Division 2 1:30 PM (MWF) Dr. E. Bae
Division 3 10:30 AM (MWF) Dr. P. Sojka
Division 4 7:30 AM (MWF) Dr. H. Mongia
Division 5 8:30 AM (MWF) Dr. J. Abraham
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Textbook & Notes
Textbook - Michael J. Moran and Howard N. Shapiro Fundamentals of Engineering Thermodynamics,7th Edition, John Wiley. 2010
- Thermodynamic properties in appendices- Unit conversion factors at front cover
Lecture Note
- Can be downloaded at ME200 course website (incomplete)- Combination of prepared and blank areas for note keeping
Prerequisite- Many concepts require some understandings in physics &
chemistry.- calculus, physics, chemistry. CHEM115, PHYS172 and MA261
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Course website & policy
https://engineering.purdue.edu/ME200/ Homework problems and links for help Tutorial room and office hour schedules (upto 70 hours of help) Old exams, notes, etc.
Announcements Incomplete lecture notes will be posted
- Notification will be sent via email if there is any course policychange
- Medical proof is required to excuse you for homework, quiz, or exam
- Be courteous to others during the class(no cell phone, news paper, etc)
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Exam & Homework Exams
- Three of 1-hour evening exams- One of 2-hour final exam (comprehensive)- No make-up exams unless official conflict- Closed-book, closed-notes (Equation sheet will be provided)- Bring calculators check batteries- Cell phone, PDA, laptop must be turned OFF during the exam- Academic dishonesty of any sort (homework or exams) will be
treated in accordance with University regulationsHomework - About 2-3 problems is solved every lecture, try to review it before
class to ask question- Only special problems is collected on Friday every week andgraded. No late homework accepted.
- Solutions posted outside ME 161
- Caught on cheating on homework -> 0 for entire homework grade
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Quizzes & Grading scale
Scale 1 Scale 2
Three 1-hour Exams 45% 35%
Final Exam 30% 45%
Special problems 10% 10%
In-class participation (Quizzes) 10% 10%
Quizzes- In-class quizzes will be given- Assess comprehension and check attendance
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Help- Instructor office Hours (immediately after class)- ME Course website (https://engineering.purdue.edu/ME200/)- Tutorial Room and bulletin board- Attend the class (attendance may be taken; unannounced class
quizzes will be given)- Complete and study homework assignments
"Reading makes a full man; conference a readyman; and writing an exact man."
-- Francis Bacon
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Help www.purdue.edu/mixable- New introduction of blog called Mixable
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Outline
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Outline
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Thermodynamics (science of energy)
1st Law of Thermodynamics (Chapter 2)Increase in internal energy of a system= heat supplied to the system - work done by the system
2nd
Law of Thermodynamics (Chapter 5)Entropy of an isolated system never decreases
E in
Eout
Eout-E in
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Examples
Jet engines
car engines
Refrigerator Power plant
Biomedical
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Systems
System
System - subject of analysiswhat we want to
study
Surroundings external tothe system
Boundary - limiting area;dividing line between two
Surroundings
boundary
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Systems
Closed system (or Control Mass) Open system (or Control Volume)
EnergyTransfer(O)
MassTransfer
(X)
GasMixture
MassTransfer
(O)
EnergyTransfer(O)
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Description of the systems
Macroscopic Thermodynamics- Gross or overall behavior
Microscopic Thermodynamics
- Also known as statistical thermodynamics- Understand the structure of the matter and relate to macro-view
Property- Macroscopic characteristics; mass, volume, energy, pressure,temperature
State-condition of systems as described by its properties
Process- Property change-> state change-> called process
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Extensive & Intensive Properties
Extensive value for overall system is the sum of its values for partsfunction of timeIntensive non-additive; independent property; function of position
and time
Mass = sum of cubesVolume = sum of cubesTemp sum of cubes
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Equilibrium
States : condition of a system described by its properties
Equilibrium : a state of balance;Thermodynamic equilibrium : no change in properties in isolated
system
SystemF1
F2
E in
Eout
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