Chapter 1: Some
Introductory Comments
Thermodynamics
1
What is Thermodynamics?
Science
of energy, which deals with the
conversion of energy from one form to another.
Deals with various properties of substance and the
changes of these properties as a result of energy
transformation.
Like all sciences, ‘thermodynamics’ is based on
experimental observations. The findings from
these observations have been expressed as some
basic laws.
Thermodynamics
3
Historically, it grew out of an effort to construct
more efficient heat engines
‘Thermodynamics’
did
not
emerge as a science until about
1700, when first attempt to build
a steam engine were made in
England by Thomas Savery and
T. Newcomen.
Thermodynamics
4
The name ‘thermodynamics’ stems from Greek
words ‘therme’ (heat) and ‘dynamics’ (power),
which is most descriptive of the early efforts to
convert heat into power.
Internal Combustion Engine Designed by Etienne Lenoir 1860
Thermodynamics
5
In 1849, Lord Kelvin used the
term ‘thermodynamics’ for the
first time in a publication.
The first ‘thermodynamics’ text
book was written by W. Rankine
in 1859.
The greatest progress in ‘thermodynamics’
was made in the early 1900s.
Thermodynamics
6
The Simple Steam Power Plant
Youtube Video
Schematic diagram of a steam power plant
Thermodynamics
7
Power Plant
Schematic diagram of a conventional power plant
Thermodynamics
8
Fuel Cells
Youtube Video
Schematic arrangement of an ion-exchange membrane
type of fuel cell
Thermodynamics
9
The Vapor Compression Refrigeration
Youtube Video
Cycle
Thermodynamics
11
Thermodynamics
12
The Gas Turbine
Youtube Video
https://youtu.be/GF-70yncAVY
Thermodynamics
13
Turbofan Jet Engine
Thermodynamics
14
Turbo-propeller Engine
Thermodynamics
16
The Chemical Rocket Engine
Simplified diagram of a liquid-propellant rocket engine
Thermodynamics
20
0
