Page 32 - statbility for masters and mates
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Ship Stability for Masters and Mates
Example 2
Find the density of a fuel oil whose relative density is 0.92
Density in kg per cu. m 1000 SG 1000 0:92
; Density 920 kg per cu. m
When a double-bottom tank is full of fresh water it holds 120 tonnes. Find how
many tonnes of oil of relative density 0.84 it will hold. Relative density Mass of oil
or
Example 4
Example 3
Mass of oil Mass of FW relative density 120 0:84 tonnes
Mass of oil 100:8 tonnes
A tank measures 20m 24m 10.5m and contains oil of relative density 0.84. Find the mass of oil it contains when the ullage is 2.5 m. An ullage is the distance from the surface of the liquid in the tank to the top of the tank. A sounding is the distance from the surface of the liquid to the base of the tank or sounding pad.
Mass of FW
Fig. 3.1
Volume of oil L B D
20 24 8 cu: m
Density of oil SG 1000
840kg per cu:m or 0.84t/m3
Mass of oil Volume density 20 24 8 0:84
Mass of oil 3225:6 tonnes
