Method of Calculating Oil Weight

 Method of calculating oil 

1.

Ulla Ullage ge tables.

2.

From “TABLE 54-B”, under the given given Specific Gravity/Density at 150 C by the oil supplier, choose the V.C.F. (Volume Correction Factor) with relation to prevailing tank temperature. For e.g., If the Specific Gravity/Density at 150 C of oil is 0.884, and the temperature is say 260 C, then referring to ‘Table 54B’, page 212, under under 884.0 (i.e. 0.884), 0.884), and in line with Temp. 26 0 C, the Volume Correction Factor (V.C.F.) is i s 0.9913. Then Gross Observed Volume (G.O.V.) x Volume Correction Factor (V.C.F.) = Gross Standard  Volume (G.S.V.)

3.

From From “TABLE “TABLE 56”, 56”, under under the Sp. Gr./Den Gr./Densit sity y at 150 C, choose the “Weight Correction Factor” (W.C.F.) in vacuum condition. c ondition.

4.

For e.g., for 0.884 (Sp. Gr./Density at 150C), W.C.F. (in vacuum) = 0.99875. 0.99875. Then; Gr. Stand. Vol. (G.S.V.) x W.C.F. (in vacuum) x Sp. Gr./Density at 15 0C = Weight in M.T.

Tank 

3 ‘P ’

“Cor “Corre rect cted ed Ullag Ullage” e”

Obsrvd. Ullage Mtrs.

Corrtd. Ullage Mtrs.

4.33

4.28

Gross Obs. Vol. G.O.V. M3 168.5

Temp o C

26

Gros Grosss Obse Observ rved ed Volu Volume me (G.O (G.O.V .V.) .) from from tank tank calib calibrat ratio ion n

Density @15oC

Vol. Corr. Factor T 54 B

Gross. Sta. Vol. G.S.V.

0.8706

0.991

167.0

Wt. Corr. Fact. W.C.F. (Vacc). T 56 0.99875

Weight In M.T.

145.2

(168.5 x 0.9911 x 0.98875 x 0.8706 = 145.2 MT)

Mohammed Khan M.T. New Jane Feb. 2002