ChemE 260
Introduction to Thermodynamics
Dr. William Baratuci
Senior Lecturer
Chemical Engineering Department
University of Washington
March 28, 2005
Welcome !
• Instructional Team
– Dr. Baratuci, Benson 253, 543-2271, Baratuci@u.washington.edu
– Chris Barnes, Bagley Hall 473, 221-5828 , CABarnes@u.washington.edu
– Haijun Sun, Benson 343, 543-7015, HJSun@u.washington.edu
• Thermodynamics: Energy-Power, energy in motion
• Attendance: Just for the 1st week
• Website:
http://courses.washington.edu/cheme260/
– Key to this course. All information will be posted online.
– HW assignments, hints and solutions and much more
– Classroom Powerpoint
• Textbooks:
– Section AA:
– Section BA:
Baratuci
ChemE 260
March 28, 2005
Thermodynamics: An Engineering Approach
by Cengel & Boles
Thermo-CD by Baratuci
Thermo-CD Log-In
Baratuci
ChemE 260
March 28, 2005
Course Homepage
Baratuci
ChemE 260
March 28, 2005
Syllabus
• Contact Information
• Office Hours
• CHAT: I will be in an online chat room from 8-9 PM the night before each
HW is due.
• References
– Two Thermodynamics books are on 24 hour reserve at the Engineering Library
• Software: I encourage you to learn to use Excel to solve your HW.
• Course Mechanics
– 9 HW assignments.
– Test: 2 tests, each 2 hours long during the quiz-section on Tuesdays.
– Final: 2 hour comprehensive n Benson 117.
• Grades:
– Homework = 15 %
– 1st Midterm = 20 %
2nd Midterm = 20 %
– Final Exam 35 %
– Evaluation 10 % - Highest score of tests or final exam
Baratuci
ChemE 260
March 28, 2005
Calendars
Lecture Summary
Name Game
• You will learn better and have more fun if you
know your classmates’ names.
• I will teach you better if I know your name and
learn something about you.
• Say your name – be LOUD and CLEAR
• Then say the name of everyone who has already
said their name…in order.
• I will go last…the hardest spot.
• Not enough time today. We will do the Name
Game in the Quiz Section tomorrow.
Baratuci
ChemE 260
March 28, 2005
How Does Thermo Affect You ?
• Engines: Trains, Planes & Automobiles
• Heating Systems: Heat Pumps
• Cooling Systems:
– Air Conditioning
– Refrigeration
• Others:
– Aspects of Thermo that are beyond the scope of this
course make it a key aspect of chemical and biological
systems
Baratuci
ChemE 260
March 28, 2005
Water-Source Heat Pump
Baratuci
ChemE 260
March 28, 2005
Used by permission from Trane
Water-Source Heat Pump
refrigerant-to-air
heat exchanger
fan
expansion
device
compressor
refrigerant-to-water
heat exchanger
Baratuci
ChemE 260
March 28, 2005
reversing
valve
Used by permission from Trane
Heat Pump in Cooling Mode
water
loop
expansion
device
compressor
refrigerant-to-air
heat exchanger
reversing
valve
Baratuci
ChemE 260
March 28, 2005
refrigerant-to-water
heat exchanger
Used by permission from Trane
Heat Pump in Heating Mode
water
loop
expansion
device
compressor
refrigerant-to-air
heat exchanger
reversing
valve
Baratuci
ChemE 260
March 28, 2005
refrigerant-to-water
heat exchanger
Used by permission from Trane
Next Class
• Energy – what is it ?
• Units – why are they important
• Nomenclature
• Systems, states and properties
• Processes, cycles and equilibrium
• Three key variables: P, V and T
Baratuci
ChemE 260
March 28, 2005