DNV Quantum 9000 concept container ship

Triton

Triton

Donald McKelvy
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Artist's impression of DNV (Det Norsk Veritas) Quantum 9000 container ship fueled by LNG (liquified natural gas).

http://www.dnv.com/binaries/quantum%209000%20technical%20paper_tcm4-451434.pdf

http://www.dnv.com/binaries/quantum%209000%20-%20dnv%20and%20man%20-%20press%20presentation%202011_03_11_tcm4-451318.pdf

Source:
http://articles.maritimepropulsion.com/article/DNV-Quantum-9000-Concept-Container-Ship14641.aspx
http://www.dnv.com/press_area/press_releases/2010/anewcontainershipconceptintroduced.asp
http://www.motorship.com/news101/improved-boxship-concept-launched
http://www.motorship.com/features101/regulation-and-classification/technology-focus-2020-from-dnv
 

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Was this one of the designs touted as a basis for a possible MSDF hospital ship, I wonder?
 
The Quantum 9000, now just a concept from the Norwegian ship standards firm DNV, would be the first container ship to run on liquid natural gas, or LNG, the cleanest available marine fossil fuel. Making the switch would reduce carbon dioxide emissions by 30 percent, nitrogen oxide emissions by 80 percent, and sulfur oxide emissions by 95 percent. The Quantum 9000 would be “midsized”—that is, big enough to carry nearly 9,000 containers in its 1,030-foot-long hull but still small enough to fit through the soon-to-be expanded Panama Canal.

Source:
http://www.popsci.com/technology/gallery/2011-07/building-and-imagining-bigger-and-better-carrier-ships?image=1
 
A lot of ships have been fuelled by LNG in the past. Almost every LNG tanker is fuelled by the boiled off gas from the huge containment vessles - hence the continued use of steam propulsion in LNG tankers. I believe Rolls Royce marketed a MT30 gas turbine powered LNG tanker, and they might have racked up an order or two.
 
The latest LNG tankers have a system to reliquify the boil off from the LNG tanks and return it to storage instead of burning it in the engines. This allowed them to shift to diesel power; though in some cases the diesels are still rigged to be able to burn some natural gas in the event the liquefying plant breaks down. I think this technology has actually been around for a while, it just didn't become standard until recently as fuel prices rose.
 
Smaller diesel engines can be converted to run on natural gas; this is currently being done commercially with trucks and buses. I wonder why the step to run a large marine diesel on CNG/LNG hasn't been taken. Maybe too small a market to make the conversion engineering cost-effective? There are only about 340 LNG tankers in the world.
 
Note that one of the main problems is the lower energy-per-volume of gas storage. Combined with the need for prismatic tanks and the safety implications of cryogenic fuels (leakage embrittles the steel and necessitates its replacement) the justification just hasn't been there. current interest is due to imminent regulations reducing further the NOx and SOx emissions permissable in certain sensitive areas. There is also a reduction in GHG emissions, but methane slip and leakage makes that hard to quantify.

RP1
 
I was thinking mainly of LNG tankers thanks to TinWing's comment on LNG tankers continuing to use steam plants.
 
I may be imagining this, but does it seem like the ship has a port sponson/bulge, but no starboard one?
 
I think it is an optical illusion, as the pics in the linked articles just fair the bow to the panamax 'box' amidships...
 
Hobbes said:
Smaller diesel engines can be converted to run on natural gas; this is currently being done commercially with trucks and buses. I wonder why the step to run a large marine diesel on CNG/LNG hasn't been taken. Maybe too small a market to make the conversion engineering cost-effective? There are only about 340 LNG tankers in the world.
Click to expand...


LNG costs more then bunker fuel grades used by ship diesels. Trucks and buses burn much higher grades of diesel fuel that cost considerably more. The issue is though, as oil prices rise and demand rises it becomes more and more attractive to spend the extra money to convert bunker fuel grades into higher grades of fuel, pushing up the costs of all petroleum fuels. Eventually this may make LNG very attractive for both ships and airplanes, but we have not reached that point yet. Reducing emissions would be a bonus, but unless shipping is heavily taxed I doubt it will be a big driver to convert fuel types.
 
Reducing emissions would be a bonus, but unless shipping is heavily taxed I doubt it will be a big driver to convert fuel types.
Click to expand...

This is actually happening already. NOx, SOx and particulate emissions have local effects and so they are being clamped down on in Emissions Control Areas, such as the North Sea. Some Norwegian operators are using LNG for small ferries, and others have this as "the plan" for increase regulation.

For larger ships this might take the form of small tanks for use in the ECAs.

RP1
 
Triton said:
Artist's impression of DNV (Det Norsk Veritas) Quantum 9000 container ship fueled by LNG (liquified natural gas).



Source:
Click to expand...

Whats that under the superstructure in the first photo, a fuel tank to propel the superstructure off?
 

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