ChemE 260 Introduction to Thermodynamics Dr. William Baratuci Senior Lecturer Chemical Engineering...
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ChemE 260 Introduction to Thermodynamics Dr. William Baratuci Senior Lecturer Chemical Engineering Department University of Washington March 28, 2005
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Transcript of ChemE 260 Introduction to Thermodynamics Dr. William Baratuci Senior Lecturer Chemical Engineering...
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
