Faculty of Engineering and Computer Sciences Thermodynamics I ENGR 251 Course Introduction Faculty of Engineering and Computer Sciences Concordia University

Lecture 0 Purpose: Introduction about this course and go through all the logistics essential information course format evaluation scheme course topics

Instructor: Dr. Hoi Dick Ng Room: EV 004.229 Tel: (514) 848-2424 ext 3177 E-mail: hoing@encs.concordia.ca Office Hours: Mondays 2:30pm - 4:00pm or by appointment Webpage: http://users.encs.concordia.ca/~hoing/Teaching/ENGR251/engr251.html Contain class lecture powerpoints & supplements Homework exercises and solutions Last minute announcements

Teaching Assistants Tutorial MA F 16:15-17:55 H-631 Mr. Ronak Lakhani ronak.lakhani91@gmail.com Ms. Ingee Hassan m.pearson556@gmail.com Tutorial MB   F  16:15-17:55 H-401  Mr. Michael Pearson m.pearson556@gmail.com Tutorial XA   F  11:45-13:25 H-401  Mr. Khaled Yassin ktyassine@hotmail.com Tutorial XB   F  11:45-13:25 H-403  Mr. Chunwei Cao chunwei863@hotmail.com  Markers  Markers Mr. Shivam Gupta shivamgupta0770@gmail.com

Objectives To present a comprehensive treatment of classical thermodynamics within the framework of an engineering technology curriculum The course consists in three equally important parts: To present the fundamentals of thermodynamics, including applications of the first and second laws, enthalpy, entropy, and reversible and irreversible processes. Lectures Tutorials (Quizzes) Assignments To train the learned concepts introduced during the lectures Apply the learned concepts

Objectives Graduate Attributes: This course covers the following graduate attributes: 1) A knowledge base for engineering Demonstrated competence in university level mathematics, natural sciences, engineering fundamentals, and specialized engineering knowledge appropriate to the program. 2) Problem analysis An ability to use appropriate knowledge and skills to identify, formulate, analyze, and solve complex engineering problems in order to reach substantiated conclusions.

Motivation Why should I learn thermodynamics in engineering ? Engineering thermodynamics is the study of how energy and heat can be used to perform useful work. Knowledge of thermodynamics is required to design any device involving the interchange between heat and work, or the conversion of material to produce heat (combustion). In order to consider yourself an Engineer, you must understand the concepts of thermodynamics and be able to apply them to real-world systems. !!!!

Motivation Why should I learn thermodynamics in engineering ? why we can’t make ICE cars that are 100% efficient? why your coffee gets cold or your beer (or soda) gets warm?

Who can tell me the second law of thermodynamics? Well… this may be true for you while you are still the first year junior. But definitely not for thermo and those who pass this course….

Conservation of energy Motivation Why should I learn thermodynamics ? This schematic demonstrates how the main concepts of this course are interrelated. Heat 1st Law 2nd Law Converted heat to work Heat flows from hot to cold Conservation of energy Quality of energy Analysis of engineering systems

$300 for hard cover $200 for soft cover $144 for the e-book Recommended Textbook: Y.A. Cengel and M.A. Boles, “Thermodynamics: An Engineering Approach”, 7th edition (SI), McGraw Hill. Or any other edition We will cover most of Chapters 1 through 9 of this text. You are encouraged to consult other thermodynamics textbooks (see those given in the course outlines) to see different approaches to the course concepts.

Topics Basic concepts Definition and fundamental ideas of thermodynamics The concept of “a system”, “a state”, “equilibrium”, “process”, etc. Zeroth law of thermodynamics (which defined a useful property, “temperature”) Properties of pure substances First law concepts ( “energy conservation and interaction”) How to determine the energy of a system Changing the state of a system (energy exchange) with heat and work How to perform an energy balance for a “closed” or “open” system Second law concepts The definition of entropy Why heat flows from hot to cold (Quality of energy) Why perpetual motion machines are impossible Applications Application of thermodynamics to heat engines; engineering cycles

Grading Scheme Two quizzes 15% Midterm Test 30% (Tentatively scheduled for November 2, 2015) Final Exam 55% ** Faculty approved calculator only (Sharp EL-531 or Casio FX-300MS or equivalent) *** Must get a passing mark (50%) for the final to pass the course

SHARP EL-531

Some tips in solving thermodynamics problem

Some tips in solving thermodynamics problem Write down a problem statement at the beginning (e.g., what are you looking for) and include a diagram/sketch that helps to clearly define your system and variables. State any assumptions needed to solve the problem, justified them if necessary. Express each step in a systematic and rigorous manner. Use units appropriately and consistent with the problem statement Use the correct number of significant digits Correctly obtain data from thermodynamic tables At the end of the question, think if your answer makes sense. (e.g., if you find 10,000C of your cup of coffee, you may want to check your steps and arithmetics. Write your solution clearly. Learn how to effectively communicate engineering solution to your employers and customers.

How to succeed in this course Attend all lectures and tutorials Study class lectures regularly Do the homework (not memorize the solutions) Discuss with your colleagues and T.A.s You are encouraged to engage in discussions regarding class topics, in class, after class. Generally if you have a question, so does someone else! Don’t be shy. Most important, ENJOY this course

Don’t PAY for any medical note Don’t MSN/ICQ or chit-chat in class Don’t COPY Don’t CHEAT Don’t BE LAZY Don’t BREAK your arm Don’t PAY for any medical note Don’t MSN/ICQ or chit-chat in class Don’t FALL asleep Don’t DEFER Don’t forget you are a University student …etc PLEASE try not to leave in the middle of the lecture. Don’t forget you are an University student and a future engineer All students should become familiar with the University’s Academic Code of Conduct (see http://www.concordia.ca/students/academic-integrity/code.html)

Provisional Course Schedule Week Dates Topic Textbook Chapters Sept. 9 – Sept. 11 Basic concepts: temperature, and pressure 1 2 Sept. 16 – Sept. 18 Properties of solids and liquids 3 3 Sept. 23 – Sept. 25 Phase changes, equilibrium, and thermodynamic tables 3 4 Sept. 30 – Oct. 2 Ideal gas law and thermodynamic properties 3 5 Oct. 7 – Oct. 9 Energy transfer by heat and work 2, 4 6 Oct. 16 Midterm 7 Oct. 21 – Oct. 23 First Law analysis of closed systems 4 8 Oct. 28. – Oct. 30 First Law analysis of open systems 5 9 Nov. 4 – Nov. 6 Gas power cycles (converting heat to work) & engines 9 10 Nov. 11 – Nov. 13 Engines (planes, trains, and automobiles) 9 11 Nov. 18 – Nov. 20 Heat engines (maximizing efficiency) 9&6 12 Mechanical energy and the First Law 13 Mar. 16 – Mar. 20 The Second Law and perpetual motion machines 6 14 Mar. 23 – Mar. 27 Entropy, probability, and the arrow of time 7