ATD2 10511 - Traditional Tank Calculations; Strap Table Volume (TOV); Cylindrical Tanks; Horizontal Tanks

Traditional tank calculations
ADM003GVAE1005 281
Traditional tank calculations
Traditional tank sensors return the level and temperature of the tank. From these
two values plus the tank configuration, a series of calculations is performed by the
FuelsManager.
Strap Table Volume (TOV)
The strap volume is obtained from the tank strapping table for the measured tank
level. FuelsManager calculates the volume for a given level based on the tank
shape as shown below.
Cylindrical tanks
Where:
Horizontal tanks
Where:
LevelRatio = (Level - LowLevel)/(HighLevel - LowLevel)
TOV = (LowVolume + ((HighVolume - LowVolume) x LevelRatio))
Level = Current Tank Liquid Level
LowLevel = Strapping point level in table immediately below Level
HighLevel = Strapping point level in table immediately above Level
LowVolume = Strapping point volume in table for LowLevel point
HighVolume = Strapping point Volume in table for HighLevel point
LevelRatio1 = [((Level-HighLevel) x (Level-HighestLevel))/
((LowLevel-HighLevel) x (LowLevel-HighestLevel))]
CalcVolume1 = (LowVolume x LevelRatio1)
LevelRatio2 = [((Level-LowLevel) x (Level-HighestLevel))/
((HighLevel-LowLevel) x (HighLevel-HighestLevel))]
CalcVolume2 = (HighVolume x LevelRatio2)
LevelRatio3 = [((Level-LowLevel) x (Level-HighLevel))/
((HighestLevel-LowLevel) x (HighestLevel-HighLevel))]
CalcVolume3 = (HighestVolume x LevelRatio3)
TOV = (CalcVolume1 + CalcVolume2 + CalcVolume3)
Level = Current Tank Liquid Level
LowLevel = Strapping point level in table immediately below Level
HighLevel = Strapping point level in table immediately above Level