9/2/2008
1
Lecture 04: Chapter 02 :ENERGY,
ENERGY TRANFER AND ENERGY
ANALYSIS
•
This Class
1.10 Manometer
1.11 Atm Press
1.12 Problem Solving
(Skip)
Chapter
•
2.1. Introduction
•
2.2 . Energy ( E) Forms
•
2.3. Transfer of E via heat
(Q)
•
2.4. Transfer of E via work (W)
•
2.5. Mech Forms of W
•
Next Class
•
2.6. 1
st
Law of Thermo
•
2.7. Efficiencies
•
2.8. Energy and Environment

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9/2/2008
2
5-4—5-5
Heat exchangers, transient flow
Oct 8
W
14
5-4
Nozzles, diffusers, turbines, compressors, heat exch.
Oct 6
M
13
—
Optional review in class
Exam 1, Thurs, 10/2, 7-9 p.m., location TBA
Oct 1
W
12
5-2—5-3
Flow work, steady-flow systems
Sept 29
M
11
5-1
Conservation of mass
Sept 24
W
10
4-2—4-5
Energy balance, spec. heats, internal energy, enthalpy
Sept 22
M
9
3-6—3-8, EES, 4-1
Property equations (of state), boundary work
Sept 17
W
8
3-5
Property data
Sept 15
M
7
2-6—2-8, 3-1—3-4; Notes
1
st
Law, efficiency, phases, phase changes;
communicating references
Sept 10
W
6
2-3—2-6; Notes
Heat, work, first law of thermodynamics;
communicating abstracts
Sept 8
M
5
2-1—2-5; Notes
Intro to EES, energy, heat, work; communicating
tables and figures
Sept 3
W
4
1-8—1-12; Notes
Temperature, pressure; communicating equations
Sept 1
M
3
1-4—1-7
Properties, states, equilibrium, processes
Aug 27
W
2
1-1—1-3
Introduction, conservation of energy, dimensions and
units, problem solving, systems
Aug 25
M
1
Read
Subject
Date
Day
Meeting
BASICS
Ist Law:Energy

9/2/2008
3
HOMEWORK: Chapter 02 (Team; one submission per
team) Due Date:Wed, Sep 17, 2008
•
HOMEWORK ASSIGNMENT # 2: Chapter 2
•
1) 17, 2) 31, 3) 40, 5) 53, 6)71,
7) 87E, 8) 91
•
9) a) Calculate Atomic Energy (AE)
of 1 g of matter (using
AE=mc
2
) and show that it is equal to
9*10
10
kJ; b) Convert 40
kW into HP; c) Energy content of gasoline is about 46 MJ/kg or
about 37 MJ/Liter. A
small car with engine
of specified
capacity
(e.g.
say 40 kW ) consumes
10 L per hr
(e.g.
say when traveling
at 120 km/hr
at 80 % of engine output) . How much energy
consumed in kJ per hr? ;d) calculate collapse energy (i.e. PE
change ) Towers: 410 m tall; total mass
1.25 Mega tons; Calculate
Change in PE during Collapse assuming the whole mass is
centered at an average height :Note that parts (a), (b) , ( c), (d)
are
all independent problems
EXERCISE PROBLEMS FROM CHAP 1 and 2 of TEXT posted
on WEB for the benefit of students who do not have TEXT

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