Interpretation:
To find final temperature, T
To find work required, W
Concept Introduction:
Methane:
Tc= 190.6 K
PC= 45.99 bar
For isenthalpic process,
For the heat/capacity of Methane:
Use generalized second-virial correlation:
The entropy change is given by
We know that
Where,
Cp = Molar heat capacity
R = Universal Gas Constant
T0= Initial given temperature = 308.15 K
P0 = Initial given Pressure = 3500 kPa
P2 = Final Given Pressure = 5500 kPa
A, B, C, D = Constants for heat capacity of air
A = 1.702
B = 9.081 x 10-3 K-1
C = -2.164 x 10-6 K-2
D = 0
W = Power required of the compressor
Tc= Critical Temperature = 190.6 K
Pc = Critical Pressure = 45.99 bar
m = 1500 mol/sec
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Chapter 7 Solutions
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