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ChemE 260 Introduction to Thermodynamics
Dr. William BaratuciSenior Lecturer
Chemical Engineering Department
University of Washington
March 28, 2005
Welcome !• Instructional Team
– Dr. Baratuci, Benson 253, 543-2271, [email protected]
– Chris Barnes, Bagley Hall 473, 221-5828 , [email protected]
– Haijun Sun, Benson 343, 543-7015, [email protected]
• 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: Thermodynamics: An Engineering Approach
by Cengel & Boles
– Section BA: Thermo-CD by BaratuciBaratuciChemE 260March 28, 2005
Thermo-CD Log-In
BaratuciChemE 260March 28, 2005
Course Homepage
BaratuciChemE 260March 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
BaratuciChemE 260March 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.
BaratuciChemE 260March 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
BaratuciChemE 260March 28, 2005
Water-Source Heat Pump
Used by permission from Trane
BaratuciChemE 260March 28, 2005
Water-Source Heat Pump
refrigerant-to-waterrefrigerant-to-waterheat exchangerheat exchanger
refrigerant-to-airrefrigerant-to-airheat exchangerheat exchanger
compressorcompressor
reversingreversingvalvevalve
expansionexpansiondevicedevice
fanfan
Used by permission from Trane
BaratuciChemE 260March 28, 2005
Heat Pump in Cooling Mode
compressorcompressorrefrigerant-to-airrefrigerant-to-airheat exchangerheat exchanger
reversingreversingvalvevalve
expansionexpansiondevicedevice
refrigerant-to-waterrefrigerant-to-waterheat exchangerheat exchanger
waterwaterlooploop
Used by permission from Trane
BaratuciChemE 260March 28, 2005
Heat Pump in Heating Mode
compressorcompressor
refrigerant-to-waterrefrigerant-to-waterheat exchangerheat exchanger
refrigerant-to-airrefrigerant-to-airheat exchangerheat exchanger
expansionexpansiondevicedevice
waterwaterlooploop
reversingreversingvalvevalve
Used by permission from Trane
BaratuciChemE 260March 28, 2005
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
BaratuciChemE 260March 28, 2005