App.e-17, App.e – Yokogawa GC8000 Process Gas Chromatograph User Manual
Page 490
<Appendix E Computation Scheme>
App.E-17
IM 11B08A01-01E
<Formula>
Z
i
= 1 – ( b
i
)
2
W =
d
H
d° =
x
i
∑
x
i
=
x
Vi
Z
i
x
i
M
i
M
x
Vi
Z
i
∑
Z
mix
= 1 – (
)
2
x
i
∑
b
i
H = H° =
x
i
H
i
°
∑
M
=
x
i
M
i
∑
Z
mix
H°
M
air
M
i
ρ° =
( )
x
i
M
i
∑
RT
p
d =
Z
mix
d°Z
air
ρ =
Z
mix
ρ°
H° =
x
i
H
i
°
∑
H = H° =
)H
i
(
°
∑
ˆ
~
H =
~
~
~
~
ˆ
H
: real gas calorific values on a molar basis
H° : ideal gas calorific values on a molar basis
H
i
: ideal gas calorific values on a molar basis of component i
H
: real gas calorific values on a mass basis
H° : ideal gas calorific values on a mass basis
H
i
: ideal gas calorific values on a mass basis of component i
H
: real gas calorific values on a volumetric basis
H° : ideal gas calorific values on a volumetric basis
H
i
: ideal gas calorific values on a volumetric basis of component i
:
M
molar mass
M
i
: molar mass of component i
M
air
: molar mass of air (28.9626)
b
i
: summation factor of component i
Z
mix
: compression factor
Z
i
: compression factor of component i
Z
air
: compression factor of air (Section 1.5.2, Table 6)
ρ
: density of real gas
ρ° : density of ideal gas
x
i
: mole fraction of component i
x
Vi
: colume percent of component i
R
: molar gas constant (8.314510J/molK)
p
: Pressure (101.325kPa)
T
: absolute temperature
W : Wobbe Index
°
°
°
~
~
~
ˆ
ˆ
ˆ
ˆ
Where:
2nd Edition : May 11, 2012-00
App.E