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First Law of Thermodynamics Summary | Up
Thermodynamics Heat Transfer and Fluid Flow Volume 1 of 3 | Next
Entropy |
Thermodynamics
SECOND LAW OF THERMODYNAMICS
SECOND LAW OF THERMODYNAMICS
The Second Law of Thermodynamics is used to determine the maximum efficiency
of any process. A comparison can then be made between the maximum possible
efficiency and the actual efficiency obtained.
EO 1.25
STATE the Second Law of Thermodynamics.
EO 1.26
Using the Second Law of Thermodynamics,
DETERMINE the maximum possible efficiency of a
system.
EO 1.27
Given a thermodynamic system, CONDUCT an
analysis using the Second Law of Thermodynamics.
EO 1.28
Given a thermodynamic system, DESCRIBE the
method used to determine:
a.
The maximum efficiency of the system
b.
The efficiency of the components within the system
EO 1.29
DIFFERENTIATE between the path for an ideal
process and that for a real process on a T-s or h-s
diagram.
EO 1.30
Given a T-s or h-s diagram for a system EVALUATE:
a.
System efficiencies
b.
Component efficiencies
EO 1.31
DESCRIBE how individual factors affect system or
component efficiency.
Second Law of Thermodynamics
One of the earliest statements of the Second Law of Thermodynamics was made by R. Clausius
in 1850. He stated the following.
It is impossible to construct a device that operates in a cycle and produces no
effect other than the removal of heat from a body at one temperature and the
absorption of an equal quantity of heat by a body at a higher temperature.
Rev. 0
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