Feature 1
and just over 1% on development of Exhaust
Gas Recirculation (EGR) technology.
The NOx fund is a four year agreement
that is due to end in 2011, but there are hopes
that the fund will continue after 2011. The
fund will learn, before 1 May 2010 whether
it will continue, from the Norwegian
government. “Fourteen organisations have
written to the government for the fund to
continue,” comments Mr Høybye. “The
chances are pretty good for it to continue.
The new agreement will have to go to
Brussels to be agreed, but it [the fund] has
teeth,” he adds. If , however, the fund does not
succeed in getting an extension it is expected
that the original NOx tax implemented by
the Norwegian government will come back
into effect and at a higher level than €2 per
kilo of NOx.
technical developments
Sea-Cargo will be delivering four ro-ro
vessels in 2010 and 2011, which has had
support from the NOx scheme, with engines
being delivered from Rolls-Royce. Two (hull
numbers 357 and 358) of the four ro-ro’s will
have 2
nd
generation Rolls-Royce engines
installed onboard, running on liquefied
natural gas (LNG). Reductions of greenhouse
gas emissions (GHG’s) are expected to see a
90% reduction in NOx, 20-23% reduction
in CO
2
and 100% reduction in SOx and
particulates.
The ro-ro’s have been ordered from
Indian shipyard Bharati, with delivery of
the engines expected next year, where they
will be shipped from Rolls-Royce, in Bergen, Norway looks to cut emissions by 20%, by 2011.
to India to be installed on the vessels. The
vessels will be 132.8m long and will have a
deadweight of 5600tonnes and a draught of Rolls-Royce has also entered into a
6m. The vessels will have 1150 lanemetres cooperation agreement with Hamworthy
for cars and will be fitted with a 50tonne for the design and adaptation of fuel
container crane. tanks to fit into other vessels, with further
A special feature of the ro-ro’s is the single negotiations on other projects also looking
engine room layout. Normally a system like at gas systems. Mr Harloff gave a prediction
the one that Rolls-Royce has designed would of when we will start seeing these vessels
require separate engine rooms, but due to seaCargo’s LNG powered ro-ro’s are to be being constructed: “We are working on
running on a single engine, the system also launched in 2011. several projects at the moment that will
utilises double-piped supple fuel, “meaning materialise in the coming months.”
that if the system has a leak it can be In regards to the future of the NOx
detected and also controlled due to the outer offset to one side to clear a vehicle ramp and fund and whether we will see it continue
pipe in place,” comments Kjell Harloff, vice minimising the impact on cargo capacity. past 2011, Mr Harloff added: “I think
president offshore engines, Rolls-Royce. The gas engine turns the propeller through so, I think it will apply in some form.
Cold liquid gas will be stored in two a reduction gear and also supplies the vessels Probably the budget will increase and
insulated LNG tanks each 240m³ forward of electrical load by means of a generator with political involvement, but it will
the engine room, in a ventilated enclosure driven off the gearbox. carry on.” NA
The Naval Architect January 2010 67
NA Jan 10 - p64+66+
67.indd 67 12/01/2010 10:08:06
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