THERMODYNAMIC SYSTEMS AND PROCESSES
Thermodynamics
THERMODYNAMIC SYSTEMS AND PROCESSES
Defining an appropriate system can greatly simplify a thermodynamic analysis.
A thermodynamic system is any three-dimensional region of space that is bounded
by one or more surfaces. The bounding surfaces may be real or imaginary and
may be at rest or in motion. The boundary may change its size or shape. The
region of physical space that lies outside the selected boundaries of the system is
called the surroundings or the environment.
EO 1.10
DESCRIBE the following types of thermodynamic
systems:
a.
Isolated system
b.
Closed system
c.
Open system
EO 1.11
DEFINE the following terms concerning
thermodynamic systems:
a.
Thermodynamic surroundings
b.
Thermodynamic equilibrium
c.
Control volume
d.
Steady-state
EO 1.12
DESCRIBE the following terms concerning
thermodynamic processes:
a.
Thermodynamic process
b.
Cyclic process
c.
Reversible process
d.
Irreversible process
e.
Adiabatic process
f.
Isentropic process
g.
Throttling process
h.
Polytropic process
Thermodynamic Systems and Surroundings
Thermodynamics involves the study of various systems. A system in thermodynamics is nothing
more than the collection of matter that is being studied. A system could be the water within one
side of a heat exchanger, the fluid inside a length of pipe, or the entire lubricating oil system for
a diesel engine. Determining the boundary to solve a thermodynamic problem for a system will
depend on what information is known about the system and what question is asked about the
system.
HT-01
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