Instruction Manual

<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
° = ()x
i
M
i

RT
p
d =
Z
mix
d°Z
air
 =
Z
mix
°
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)
 : density of real gas
°: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