Lecture01 Introduction Handout

8/3/2019 Lecture01 Introduction Handout

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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

Documents

Lecture01 Introduction Handout