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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
Comparing the power outputs based on the same total resistance, i.e. U
H
A
H
þ U
C
A
C
¼ 2 gives the
following table.
It can be seen that the optimum system is one in which the high- and low-temperature resistances
are equal. In this case the entropy generation (per unit of wor k) of the universe is minimi sed, as shown
in the table below.
U
H
A
H
U
C
A
C
_
Q
H
T
H
_
Q
H
T
1
DS
H
W
_
Q
C
T
2
_
Q
C
T
C
DS
C
W
P
DS
W
1 0.25 þ0.333 þ4.17 10
4
0.333 þ0.5 þ4.17 10
4
þ8.34 10
4
1/2 0.225 þ0.333 þ6.23 10
4
0.333 0.4443 þ6.24 10
4
þ0.00125
2 0.225 þ0.266 þ2.48 10
4
0.266 0.4443 þ10.00 10
4
þ0.00125
6.3 EFFICIENCY OF COMBINED CYCLE INTERNALLY REVERSIBLE HEAT
ENGINES WHEN PRODUCING MAXIMUM ...
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Publisher Resources

ISBN: 9780444633736