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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
At 120
C, the slope of the saturation line is
dp
dT
z
2:321 1:691
10
10
5
¼ 6:30 10
3
.
From the Clausius–Clapeyron equation, Eqn (7.82)
s
2
s
1
v
fg
¼
dp
dT
¼
s
g
s
f
v
fg
;
giving
s
g
¼ s
f
þ v
fg
dp
dT
¼ 1:530 þ 0:8845 6:30 10
3
=
10
3
¼ 1:530 þ 5:57235 ¼ 7:102 kJ=kg K
The specific enthalpy on the saturated vapour line is
h
g
¼ h
f
þ Ts
fg
¼ 505 þð120 þ 273Þ5:57235
¼ 2694:9kJ=kg K
These values are in good agreement with the tables of properties; the value of s
g
¼ 7.127 kJ/kg K,
while h
g
¼ 2707 kJ/kg at a temperature of 120.2
C.
7.6 CONCLUDING REMARKS
Thermodynamic relationships between propert ies have been developed which are independent of a
particular fluid. These can be used to
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Publisher Resources

ISBN: 9780444633736