Hydrostatic & Hybrid Tank Calculations
ADM003GVAE1005 311
Hydrostatic & Hybrid Tank Calculations
FuelsManager provides calculations of tank levels and volumes based on
measurements at pressure of precise positions on the tank. These calculation
techniques fall into two main groups.
FuelsManager provides configuration parameters for up to three pressure
instruments as shown below. The following shows the use of three pressure
instruments; however, FuelsManager allows for configuration with 1, 2, or 3
transmitters.
In addition, FuelsManager allows for the configuration of the exact position of the
tank, including the latitude and elevation above sea level. These parameters allow
for corrections due to the effects of local gravity and air density as defined below.
Hydrostatic Measurement of pressure at one or more points in the tank and
the subsequent calculation of the product density and tank
level. This type of measurement technique can be used without
a level gauge
Hybrid This technique combines the measurement of product density,
via pressure measurement of one or more points in the tank,
and the direct measurement of product level with a level gauge
Level (L)
Bottom
Pressure P
b)
Top
Pressure (P
t)
Middle
Pressure P
m)
Ht
Hm
Hb
Temperature (T)
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