=6.3760kJ/(kg K)
s2=s1=6.3760kJ/(kg K), h2=2968.74kJ/kg h3=3673.4kJ/kg, s3=7.3686kJ/(kg K) s4=s3=7.3686kJ/(kg K) x4=
s4 s4" s4 s4
T
s3 s4" s4 s4
7.3686 0.4762
8.3952 0.4762
s
=0.8704
h4=x4(h4"–h4')+ h4'=0.8704(2561.2-137.77)+137.77 =2247.12kJ/kg h5=h4'=137.77kJ/kg
s6=s5=s4'=0.4762kJ/(kg K)
h6=(162.85-157.95)(24.5-20)/(25-20)+157.95=162.36kJ/kg
2247.12 137.77
t=1 =47.76%
3495.77 162.36 3673.4 2968.74