Calculation of outflow in case of bottom damage as per 5.3 of the IMO Guidelines

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Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC/Circular.365 – Interpretation of Requirements for Application of Hydrostatic Balance Loading in Cargo Tanks (Resolution MEPC.64(36)) – (Adopted 26 July 1999) - Annex - IACS Unified Interpretation MPC 7 - Hydrostatic Balance Loading - Calculation of outflow in case of bottom damage as per 5.3 of the IMO Guidelines

Calculation of outflow in case of bottom damage as per 5.3 of the IMO Guidelines

.12 Width of tank i, b_i:

for tanks adjacent to the side shell, b_i is the width of the tank, measured inboard at 1_i/2, at right angle to the centre line and at the level of the maximum assigned summer load line
for a centre tank, b_i is the width of the tank bottom measured at 1_i/2.

.13 Width of the cargo tank area, B_t:

B_t is the maximum breadth as defined by Annex I, Regulation 1(21) measured within L_t.

.14 Height of double bottom, h_i:

h_i is the minimum height of the double bottom measured from the baseline.

Refer to figures 2 and 3.

.15 Height of the cargo column above the cargo tank bottom, h_c:

h_c is the height of the cargo column measured from the cargo tank bottom at the point where h_i is measured. Refer to figure 2.

Where a double bottom does not exist, then h_c is to be taken at its maximum value considering any deadrise of the ship. Refer to figure 3.

Figure 2 Height of cargo column above tank bottom

Figure 3 Height of cargo column without double bottom

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