Imabari Shipbuilding has developed the
Aero-Citadel, a newly designed superstructure which brings
to realization both energy efficiency and anti-piracy measures.
<Energy efficiency >
The Aero-Citadel is a superstructure with slimly streamlined
shape which combines ship's accommodation, engine room ,
and funnel casing.
Wind pressure during navigation will be reduced by 25-30%
(as the result of the wind tunnel testing). In case of Cape
size bulk carrier, it will enable a decrease of about 2%
in fuel consumption.(*) New marine use LED lighting is also
introduced to the accommodation and engine room lighting
system, which reduces electric power consumption used for
lighting by about 50%.
(* at normal output, about 9m/sec.(Beaufort 5) head wind)
<Safety & Security>
The slim, streamlined shape makes it easy to turn the bow
of the ship toward windward during anchorage, and decrease
the risk of anchor dragging.
All stairs are placed inside the superstructure as an anti-piracy
measure, the entrance on lower level deck has thicker, reinforced
steel doors. The accommodation windows are bulletproof,
and water cannons are placed on the upper deck to prevent
pirates entry into the accommodation.
There is a citadel facility which is refuge area in the
superstructure that can accommodate all crewmembers for
several days, protected by double-layer security doors.
The facility is also equipped with communication devices
usable even in case of blackout, ship maneuvering equipments
such as stop main engine and steering gear, and is able
to gather information of the ship’s data, including video
picture and sound.
The accommodation design also includes features in accordance
with the SOLAS MLC2006 requirements which will come into
effect in near future, such as strengthened noise insulation
and vibration counter measure. Improved living conditions
for crewmembers are provided and the wheelhouse has widened
backward view for safer navigation.
Imabari Shipbuilding proposes the next generation superstructure
Aero-Citadel to be applied for possible type of vessel,
paying special attention to energy efficiency and environment
issue, and pursuing reinforced anti-piracy , improvement
of safety and living condition of crew members.