Traditional tank calculations
ADM003GVAE1005 297
The Molar method
The GW is the Gas Weight derived by following equation.
Where:
Food oil method
Where:
Chinese Correction Method
If the GB/T Volume Correction Method is selected, the following additional mass
calculation options are available.
Sinopec Method:
PetroChina Method:
GT = Gas Temperature
NW = NSV (ρ15 - 0.0011) + GW
NW = Net Weight
NSV = Net Standard Volume
GW = Gas weight
GOV = Gross Observed Volume
Vmax = Total Tank Capacity
ρ15 = 15°C liquid density
P = Gas Pressure
GT = Gas Temperature
M = Mole constant
NW=GOV x ρ15
NW = Net Weight
GOV = Gross Observed Volume
ρ15 = 15°C liquid density
NW = Net Weight
GW = (V max-GOV)
273
273 GT+
-----------------------
1.033+P
1.033
--------------------
×
M
22.4
----------
×
1
p15
---------
×
1
1000
------------
×ρ15-0.0011()×
NW NSV ρ20 1.1–()× G–()1W–()×=
NW NSV 1 W–()× p20 0.0011–()×=
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