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Advanced Thermodynamics for Engineers, 2nd Edition
book

Advanced Thermodynamics for Engineers, 2nd Edition

by Ali Turan, D. Winterbone
February 2015
Intermediate to advanced content levelIntermediate to advanced
578 pages
19h 27m
English
Butterworth-Heinemann
Content preview from Advanced Thermodynamics for Engineers, 2nd Edition
where dQ ¼ heat transferred to system and dQ
0
¼ heat rejected from system, as in an engine (E
R
)
undergoing an infinitesimal Carnot cycle.
In reality, dQ
0
is the minimum amount of heat that can be rejected because processes 1 to 2 and 3 to
4 are both isentropic, i.e. adiabatic and reversible.
Hence the amount of energy that must be rejected is
E
unav
¼
Z
dQ
0
¼ T
0
Z
dQ
T
R
¼ T
0
DS (4.14)
Note that the quantity of energy, dQ, can be written as a definite integral becau se the process is an
isentropic (reversible) one. Then E
unav
is the energy that is unavailable and is given by cdefc. The
available energy on this diagram is given by abcda and is given by
E
av
¼ Q
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Publisher Resources

ISBN: 9780444633736