
Page 3
–32
2104349 rev. AD
Calculation Parameter
AGA-3
1985
AGA-3
1992
AGA-7
ISO-5167
Fpv (Supercompressibility Factor)
1
Yes
Yes
Yes
2
Yes
3
Fw (Water Vapor Factor)
4
Yes
Yes
Yes
Yes
Faux (Full Well Stream Factor)
5
Yes
Yes
Yes
Yes
Cd (Coefficient of Discharge)
N/A
Yes
N/A
Yes
Fp (Fpv method = NX19 Fixed)
Yes
Yes
Yes
Yes
Ft (for Fpv method = NX19 Fixed)
Yes
Yes
Yes
Yes
Coefficient of Discharge Calc
N/A
Yes
N/A
Yes
6
Fpc (Pressure Correction Factor)
N/A
N/A
Yes
N/A
Ftc (Temperature Correction Factor)
N/A
N/A
Yes
N/A
Fs (Fpv
2
Compressibility Factor)
N/A
N/A
Yes
N/A
3.6.5 Supercompressibility calculation (Fpv)
When the G4 EX is powered up, the calculation method needs to be set. The user
has the option of changing the formula method to any one of several other choices
(see Table 3
–2). Once the calculation has been determined, the user may toggle
specific parameters on or off depending upon whether they would like to use fixed
or live analysis data.
Many decisions involved with setting up the Fpv are dictated by
the user’s sales contract or company policy.
Table 3
–2 Fpv analysis data
Analysis Data
Default
Value
Units
NX19 Fixed
Ft/Fp
AGA-8 1992
Detail
All
Others
7
Fp (for Fpv method NX19 Fixed)
1.000
Yes
No
No
Ft (for Fpv method NX19 Fixed)
1.000
Yes
No
No
Heating Value
8
1000.0000
BTU/SCF
Yes
Yes
Yes
Argon
0.0000
mol %
No
Yes
No
Carbon dioxide CO2
0.0000
mol %
Yes
Yes
Yes
Carbon monoxide
0.0000
mol %
No
Yes
No
Ethane
0.0000
mol %
No
Yes
No
H2S
0.0000
mol %
No
Yes
No
1
NX19 GCN, NX19 GCNM, AGA-8 1992 Gross and AGA-8 1992 Detail
2
See
Fs for AGA-7 Fpv
2
3
Only AGA-3 1992 Gross and Detail
4
Not an AGA factor. Fw is a factor which compensates for water vapor in the gas stream and its effect on volume
measurement.
5
Not an AGA factor. Faux is a user set multiplier to compensate for liquids in the gas stream. Defaults to 1.
6
Discharge Coefficient Type-only AGA-3 1992 and ISO-5167-1
7
NX19 GCN, NX19 GCNM, AGA-8 1992 Gross
8
Enter the Heating Value in Btu per SCF. Not used in volume calculations. Only used for calculating MMBTU for reports.
Содержание XSeries G4 6200
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