1. LNG fuelled
Container
Vessel
Nitin Sharma
XXXV Batch

3. Why LNG as fuel ?

4. SO2 emission scenario of the world

5. MARPOL (Annex VI)
•
Limits the sulphur content of marine fuels on a global basis to
4.5%. (May 2005)
•
That limit was then lowered to 3.5% sulphur from January
2012.
•
Annex VI also imposed a 1.5% sulphur limit on marine fuels in
Emission Control Areas (ECAs) effective May 2006.
•
That limit was reduced to 1.0% sulphur effective 1 July 2010,
and will be further reduced to 0.1% sulphur beginning
January 2015.

6. Current World Scenario:

7. Benefits Of LNG as Fuel
•
LNG is expected to be less costly than marine gas oil
(MGO).

9. Benefits Of LNG as Fuel
• The
use of LNG as ship fuel will reduce
sulphur oxide (SOx) emissions by 90-95%.
•A
lower carbon content of LNG
compared to traditional ship fuels
enables a 20-25% reduction of carbon
dioxide (CO2) emissions.

10. LNG as fuel Till date:
• Dual
• As
• In
fuelled ships.
fuel in converted ships.
LNG carriers.

11. Why for Container Ships ?

12. Why for Container Ships ?

13. LNG as Fuel for Container Ships
Payback time is shorter for the smaller container vessels
(900 TEU and 1,250 TEU) since the capital investment
needed for their LNG systems is smaller than for larger
vessels.

14. Storage of LNG as Fuel:
•
Issues related:
• Highly Pressurised
• Low Temperature
• Insulation: Thermal & Chemical.
• Use of special valves for bunkering &
release of fuel

15. Stowage Of LNG fuel in a
Container Ship
•
Very difficult to stow in double bottom
tanks.
•
Two methods:
Using ISO type ‘C’ tanks installed at stern.
• Using ISO LNG Containers 20/40 TEU.
•

16. ISO Type C Tanks at the Aft of ship.

17. Advantages of this setup:
•
Most suitable for easy & fast bunkering of
fuel.
•
Trim by aft.
•
Easy maintenance & cleaning of tanks.
•
Initial cost of the setup is high.

18. ISO LNG Containers (20/40 TEU)

20. Features of this system
•
Flexible: Containers can be added as per the
requirements of the route (distance).
•
Easy loading of fuel.
•
Use of special valves and pipe connections
required on the deck to supply fuel to engine
room.
•
Low cost of the setup.

21. Stowage Of LNG fuel in a Container
Ship

22. No. of LNG containers required:
•
SFC:
65.45 gm/kW h
•
MCR:
8400 kW h
•
No. of days at 19.5 knots:
•
Distance:
•
Mass of LNG needed: 52 t
•
After allowance:
•
60 t of LNG = 133.3 m3.
•
Capacity of 1 LNG TEU = 20 m3
•
No. of container needed = 7
•
No. of Container carried on ship: 8 or (4 FEU).
4 days
1880 nm (Fueling at origin, Low cost)
60 t

23. Scope
• First
ship on this concept to be
launched in mid this year.
• 12
ships have been ordered by TOTE
Maritime (US) to a Norwegian Shipyard.
• LNG
bunkering facilities are being
developed at several shipyards in
European Union.
• Many
owners from European countries
have also shown their interest.

24. Thank
You