x = mvapor / mtotal
vav = vf +x vfg
(X/Y)×Z
ΔP = ꮅgh
Rair = 0.287 kPa.m3/kg.K
h= u+Pv
m=ꮅVA
Cp,air = 1.005 kJ/kg.K
P

 RT ln 2
W
Comp, in = m
P1
ηN =
2
V2a
2
V2s
=
=1/v
1 kJ/kg = 1000 m2/s2
h1 − h 2a
h1 − h 2s
2
w rev = − vdP,
1
kJ= kPa.m3
PV= mRT v=V/m
1000 liters = 1 m3
Ru = 8.314 kJ/kmole.K
m = M.N
Pv = RT
Z = Pv/ RT = vactual / videal
TR = T/Tcr
PR = P/Pcr
Cp-Cv= R
Cp/Cv = k
W= PV ln(V2/V1)
n −1


n


nRT
P


1
2




WComp, in = m
− 1

n - 1  P1 



Performance Index = Energy Desired / Energy Required