Cylindrical Horizontal Tank with One Hemi-Ellipsoidal End
For the Cylindrical Horizontal Tank with One Hemi-Ellipsoidal End, the gauge reading is converted to the total observed volume using the following equation.
Where:
R = Tank radius in length units
H = Gauge reading, same length units as R
L = Tangent-to-tangent length, same length units as R
A = Length of minor axis, same units as R
B = Length of major axis, same units as R (equal to twice the tank radius)
D = Length from tangent to end of the head, same units as R
V1 = Total observed volume of the main cylinder for gauge reading
Ve = Total observed volume of hemi-ellipsoidal end for gauge reading
V = Total observed tank volume at gauge reading
EXAMPLE: Cylindrical Horizontal Tank with One Hemi-Ellipsoidal End
The cylinder tank with hemi-ellipsoidal ends has the dimensions of 7ft in diameter and a tangent-to-tangent length of 20ft, minor axis lengths of 7ft and a depth of 3ft, what is the total observed liquid volume for a gauge of 4 ft 3 in?
Ve = 50.67 ft3
V1 = 489.33 ft3
V = V1 + Ve = 540.00 ft3 = 96.12 bbls
See Configuring - Cylindrical Horizontal Tank with One Hemi-Ellipsoidal End for details on how to configure this tank type.