4-84
Flow-X─ Function Reference
Flow-X General functions - fxAPI_Dens15C_NGL_LPG
CPL calc out of
range
With respect to API 11.2.2M the
combination of input values is:
0: In Range
1: Out of Range
The following range checks apply:
350 <= Density 15 °C <= 637
kg/m3
-46 °C <= T <= 60 °C
CPLOOR
0
GPA TP-15 out of
range
Only set when the GPA TP-15
calculation is enabled
With respect to the GPA TP-15
standard the combination of input
values is:
0: In Range
1: Out of Range
The following range checks apply:
For lower range:
0.350 <= RD60 < 0.425
-50 to (695.51*RD60 -
155.51) °F
Higher range:
0.425 <= RD60 <= 0.676
-50 to 140 °F
with RD60 being the relative
density at 60°F
-
TP15OO
R
0
Calculations
The calculations depend on the conversion method.
Conversion method 1: from observed to standard conditions.
The function performs the following iterative algorithm to calculate the density at 15
°
C and the
equilibrium pressure.
1.
When API 11.2.4 rounding is enabled, the input density and temperature values
are rounded in accordance with the standard
2.
At the start of the iteration the density at [15
C, equilibrium pressure] is set
equal to the observed density and the CPL value is set to 1.
3.
First the density corrected for pressure is calculated by dividing the observed
density by the CPL value.
4.
The relative density corrected for pressure is calculated from the density
corrected for pressure
5.
The relative density at [60
F, equilibrium pressure] is calculated from the relative
density corrected for pressure and the observed temperature according to Table
23E
6.
The relative density at [15
C, equilibrium pressure] is calculated from the
relative density at [60
F, equilibrium pressure] converted to 15
C according to
Table 24E
7.
The density at [15
C, equilibrium pressure] is calculated from the relative density
at [15
C, equilibrium pressure]
8.
The CTL value is calculated by dividing the density corrected for pressure by the
density at [15
C, equilibrium pressure]
Summary of Contents for flow-x
Page 1: ...Function Reference Certified flow calculations Flow and batch calculations Worksheet functions...
Page 331: ...Flow X Function Reference 5 331 Flow X IO Functions fxPT100Table...
Page 349: ...Flow X Function Reference 6 349 This page is intentionally left blank for user notes...
Page 350: ...6 350 Flow X Function Reference This page is intentionally left blank for user notes...
