Gas Mixtures
Chapter 13
Composition of a Gas Mixture:
Mass and Mole Fractions
Mass Fraction (mf): The ratio of mass of a
component to the mass of the mixture is
called the mass fraction.
mi
mf i
mm
Chapter 7:
-If specific heat is variable:
*Entropy change calculation :
P2 Pr 2
P1 Pr 1
-In general :
S S 2 S 1
2
Q
Sgen
T
S adiabatic Sgen
1
X (U U 0 ) P0 (V V0 ) T0 (S S0 ) m
(u u0 ) P0 (v v0 )
Gas Power Cycles
Our study of gas power cycles will involve the study of those heat engines in which
the working fluid remains in the gaseous state throughout the cycle. We often study
the ideal cycle
Gas-Vapor Mixtures and Air-Conditioning
We will be concerned with the mixture of dry air and water vapor. This mixture is
often called atmospheric air.
The temperature of the atmospheric air in air-co
Thermodynamic Property Relations
Some thermodynamic properties can be measured directly, but many others cannot.
Therefore, it is necessary to develop some relations between these two groups so
that t
Chemical Reactions
The combustion process is a chemical reaction whereby fuel is oxidized and energy
is released.
Fuels are usually composed of some compound or mixture containing carbon, C, and
hydro
Refrigeration Cycles
The vapor compression refrigeration cycle is a common method for transferring heat
from a low temperature to a high temperature.
The above figure shows the objectives of refrigera
Exergy: A Measure of Work Potential
The energy content of the universe is constant, just as
its mass content is.
Yet at times of crisis we are bombarded with speeches
and articles on how to conserve e
Gas Mixtures
The discussions in this chapter are restricted to nonreactive ideal-gas mixtures.
Those interested in real-gas mixtures are encouraged to study carefully the material
presented in Chapter
Refrigeration Cycles
The vapor compression refrigeration cycle is a common method for transferring heat
from a low temperature to a high temperature.
The above figure shows the objectives of refrigera
Refrigeration Cycles
Chapter 11
Refrigerators & Heat Pumps
Refrigeration: The transfer of heat from
-Refrigerator: Devices that produces
refrigeration are called refrigerators.
Refrigerant: Is the wor
Gas Vapor Mixtures &
Air Conditioning
Chapter 14
Dry & Atmospheric Air
Air is a mixture of N2, O2 and small amount of
other gasses.
Atmospheric air: Air in the atmosphere
normally contains some wate
ME204 (132)- Lecture 2
REVISION ME203
S.A.M. Said
The goal of this lecture is to review the material you covered on the second law and entropy
in the first course of Thermodynamics. By the end of this
ME204 (132) Lecture 1
REVISION-ME203
S.A.M. Said
1.1
Goals:
The goal of this lecture is to review the material you covered on pure substances and
the First Law of Thermodynamics in the first course of
Exergy: A
measure of Work
Potential
Chapter 8
Objectives
Examine the performance of engineering
devices in light of the second law of
thermodynamics.
Define exergy, which is the maximum useful
work
Thermodynamic Property
Relations
Chapter 12
Using Ideal Gas Equation ,verify :
1.The cyclic relation
2.The reciprocity relation at constant P
The Maxwell Relations
Equations that relate the partial d
Vapor and Combined Power
Cycles
Chapter 10
Introduction to Power and
Refrigeration Cycles
Two important areas of application for
thermodynamics are Power Generation and
Refrigeration.
Both power gener
GAS POWER
CYCLES
Chapter 9
Introduction
1.
2.
Two important areas of application for
thermodynamics are
-and -.
Both power generation and
refrigeration are usually accomplished
by a system that operat
Thermodynamics II
Chapter 15
CHEMICAL REACTIONS
.
Objective
s
Give an overview of fuels and combustion.
Apply the conservation of mass to reacting
Define the parameters used in combustion analysis
Vapor and Combined Power Cycles
We consider power cycles where the working fluid undergoes a phase change. The
best example of this cycle is the steam power cycle where water (steam) is the
working fl
Exergy
A Measure of Work Potential
Exergy
Property
Availability or available work
Work = f(initial state, process path, final state)
Exergy
Dead State
When system is in thermodynamic
equilibrium with
GAS POWER
CYCLES
Chapter 9
Feb. 2018
Introduction
1.
2.
Two important areas of application for
thermodynamics are power
generation and refrigeration.
Both power generation and
refrigeration are usuall
King Fahd University of Petroleum & Minerals
MECHANICAL ENGINEERING DEPARTMENT
ME 204 : THERMODYNAMICS 11
Spring Semester 20052 006 (052)
KM
.
Name
Midterm Exam
Student #
Dr. P. Gandhidasan
Section: M
Thermodynamics: An Engineering Approach, 7th Edition
Yunus A. Cengel, Michael A. Boles
Chapter 8
EXERGY: A MEASURE OF
WORK POTENTIAL
Objectives
Examine the performance of engineering devices in light
11.!
r ,
M.
King Fahd University of Petroleum & Mierals
MECHANICAL ENGINEERING DEPARfMENT
ME 20-4: THERMODYNAMICS I
-I.
ME 294.04 Dr- Sabin, A.
NIE 2.04.05 Dr. AlFgrayedhi, A.
"204.
Chapter 7:
-If specific heat is variable:
*Entropy change calculation :
P2 Pr 2
P1 Pr 1
-In general :
S S 2 S 1
2
Q
Sgen
T
S adiabatic Sgen
1
X (U U 0 ) P0 (V V0 ) T0 (S S0 ) m
(u u0 ) P0 (v v0 )
CHAPTER 10: VAPOR AND COMBINED POWER CYCLES
INTRODUCTION
In this chapter, we consider vapor power cycles in which the working fluid is alternatively
vaporized and condensed.
Steam is the most common
CHAPTER 8. EXERGY: A MEASURE OF WORK POTENTIAL
8-1 EXERGY: WORK POTENTIAL OF ENERGY
In the analysis of an energy source system, we are interested not in the amount of energy
contained in the source,
CHAPTER 9: GAS POWER CYCLES
INTRODUCTION
Two important areas of application for thermodynamics are power generation and
refrigeration. Both are usually accomplished by systems that operate on a
therm
King Fahd University of Petroleum & Minerals
Mechanical Engineering Department
ME 204: THERMODYNAMICS II
Fall semester 2014-2015 (141)
The Mechanical Engineering Department is committed to providing h
3.5 The Node-Voltage Method
Revised according to our convention all currents in
resistors are assumed leaving.
Note that now equation of Na has positive Va always,
and equation of Nb has positive Vb a