Tanks can be defined and calibrated for capacity, centre of gravity and free surface moment (FSM). Fluid densities and tank permeabilities can be varied arbitrarily. Tank calibrations are for the upright (zero heel) vessel, but the vessel's trim may be specified. Hydromax uses its fluid simulation mode to calculate the actual position of the fluids in the tanks, taking into account the vessel trim. Tank ullages are measured from the top of the sounding pipe to the free surface of the liquid within the tank along the sounding pipe and in a similar manner, soundings are measured from the bottom of the sounding pipe to the free surface.

Tank calibration analysis requirements

§   Tank definitions

§   Sounding pipe definition (if required)

§   Sounding intervals for calibration levels

§   Trim

Tank calibration analysis options

§   Fluid Densities

§   Treatment of fluids in tanks: fluid simulation always selected

§   Hog and Sag

§   Damage: Intact case always selected

For each tank, a table of capacities, volumes etc. is calculated. These results are presented in both tabular and graphical forms.

For more detailed information please see Tank Calibrations on page 87.