MPC 7 Calculation of total hypothetical outflow as per
5 of the IMO Guidelines.
(cont'd)
.16 When investigating outflow due to side damage,
the side offering the more unfavourable EOS number should
only be used.
Requirements for application of hydrostatic balance
loading in cargo tanks as per the Appendix to the IMO
Guidelines.
. 17 The number of tanks to be HBL is determined by
the conditions underlined by EOS3 not being greater than
EOS2 for the ship arranged with non-cargo side tanks and
furthermore not being greater than 85% of the EOS1. Once
it has been established that these conditions have been
met, with zero trim adjusted Vi, nominal density and
maximum cargo level as per the Appendix formula, the
configuration is considered having been validated and
there is no need to recalculate EOS3 for the actual
loading conditions corresponding to that configuration.
Filling levels in HBL tanks for the actual loading
conditions are determined by the HBL formula of the
Appendix to the Guidelines using actual density and
draught at each HBL tank location.
.18 Partial filling less than HBL height may
alternatively be considered. In such conditions, the
cargo height in the selected cargo tanks is to be
determined based on EOS 3 compliance with the criteria,
with zero trim, nominal density, and draught corresponding
to adjusted Vi,
Where cargo levels less than maximum cargo level
calculated by the HBL formula of the Appendix to the
Guidelines are used for EOS3 calculation, the actual
filling levels will be calculated as follows:
(hc x K) x Pc x g + 100△P<(d -
hi) x Ps x g
where K is a correction factor h(HBL)/h(PF)
with:
h(PF) : maximum cargo height in partial
filling condition, leading to a satisfactory EOS3 for the
selected configuration (with nominal density, assumed
zero trim, corresponding draught d(PF),
adjusted Vi).
H(HBL): maximum HBL cargo height for the
selected configuration at draught d(PF).
Thus :
K = ((d(PF) - hi) x Ps x
g 100△P)/(Pn x g x h(PF))
