Page 190 - Technology Roadmap Transportation

TECHNOLOGY VISION 2035

ONL Y

ON DECK WINCH
SOLAR GENERATION SYSTEM
GENERATING ELECTRICITY

SOLAR HYBRID

ENGINE ROOM
BATTERY ROOM
BALLAST TANK
DIESEL GENERATOR SWITCH BOARD LITHIUM-ION BATTERIES
GENERATING ELECTRICITY DISTRIBUTING ELECTRICITY TO CHARGE / DISCHARGE
ELECTRICAL EQUIPMENT

FIG 4.11: ELECTRICITY GENERATION SYSTEM ON BOARD SHIP THROUGH SOLAR POWER[11]
is berthed, all of its power needs can be installation for wind propulsion may lead
supplied by the battery system, allowing to ship retrofits within the next ten years.
for the diesel generators to be shut down, However, kite installation will require
resulting in zero emissions while the vessel erection of additional structures for mast
is in port. support and few additional duties for the
crew. Interference with the cargo handling
• Wind power: The potential of wind energy equipment may also not be ruled out.
to be used for ship propulsion is substantial
and forms an attractive alternative
for certain services and operational FIG 4.12: HARNESSING THE WIND, A TOWING KITE
SYSTEM[12]
conditions. The modern versions of the
wind technologies are currently under
pilot testing and are expected to form
part of the future ship power systems.
Rotors placed on the deck of a ship can
generate thrust by taking advantage of the
Magnus effect. Similarly a kite attached to
the bow of a ship can utilize wind energy
to substitute power of the ship’s engines.
A towing kite system is shown in the
figure 1.2.11. The kite provides a thrust
force directly from the wind. The system
consists of the kite, control lines with a
control node, a hawser connection to the
forecastle, a winch and the bridge control
system. Commercial kites currently range
from 160 to more than 300 m and can
2
substitute a propulsion power up to 2000
Kilowatts depending upon wind conditions
and ship’s speed. Generally, the systems are
attractive for ship speeds below 15 knots.
The automatic control system actively
steers and stabilizes the kite, optimizing
its performance. The relative ease of kite

188 WATERWAYS