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Flow-X─ Function Reference
Flow-X General functions - fxAGA10ex_M
fxAGA10ex_M
The extended AGA 10 function provides an extensive set of gas properties at the specified conditions of
temperature and pressure using the formulae presented in the American Gas Association Report No 10.
Compliance
AGA Report No. 10 - Speed of Sound in Natural Gas and Other Related Hydrocarbon Gases, January
2003
Boundaries
The AGA-10 calculation has defined uncertainty bounds for gas mixtures that lie within the 'Normal
range'. Also an 'Expanded range' of gas mixtures is defined for which the AGA-10 calculation has a
higher uncertainty. Using the AGA-10 calculation for gas mixtures that lie outside the 'Expanded range'
is not recommended.
The AGA-10 standard specifies the same limits as the AGA-8 standard. Refer to the fxAGA8 function for
details on the actual limit values used by this function to set output ‘Range’.
Function inputs and outputs
Function inputs
Remark
EU
SW tag
Range
Default
Name
Optional tag name, tag
description and tag
group
Pressure
Observed pressure
bar(a)
0..2000
Temperature
Observed temperature
°C
-
200..+400
Composition
Standard composition as
defined in section
'Standard gas
composition.
mol/mol
COMP
0..1
neo-Pentane
mode
Determines what to do
when component neo-
Pentane is larger than
zero
1: Add to i-Pentane
2: Add to n-Pentane
3: Neglect
-
NEOC5_MODE
1
Function outputs
Remark
EU
SW tag
Alam
Fall
back
Status
0: Normal
1: Input argument out
of range
2: Calculation error
3: No convergence
4: Mole fractions do
not add up to 1.0 +-
0.0001
STS
FIOOR
CALCERR
NOCONV
COMPOOR
Molecular weight
kg/kmol
MOLMASS
Molar density at base
conditions
mol/m3
MOLDENSB
Molar
density
at
flowing conditions
mol/m3
MOLDENSF
Mass density at base
conditions
kg/m3
MASSDENSB
Mass
density
at
flowing conditions
kg/m3
MASSDENSF
Содержание flow-x
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