The necessity to operate ships both sustainably and more efficiently is a
eating passion for the maritime globe today, constantly throwing up
revolutionary ideas. Can anyone think of a much better and cleaner way of moving
giant container ships compared to huge two-stroke diesels which are relied upon
today? A mixed gas and steam generator, such as those found on warships, for
instance, but with electrical drive to the propeller, appears an interesting
concept.
We attempted gas turbine merchant boats some thirty years ago --
think of the Australian ro-ros, some very fast trans-Atlantic textbox ships and
the amazing Handmade express ferry Finnjet. These were all technically
successful. Unfortunately, it was the steeply increasing fuel prices that wiped
out off these vessels ahead of time, leaving gas turbines mostly to navies. But
what when the power and flexibility that fuel and steam turbines provide in a
compact space could be combined with LNG - the actual “fuel of the future”? So
how does15404 this affect the design of substantial containerships?
An
interesting collaboration among cryogenic engineers GTT, containership giant CMA
CGM as well as classification society DNV GL has resulted in a specialized and
feasibility study for any new very large containership created around this LNG
fuelled, wind turbine powered concept.
The design shows a number of
advantages that finish such a propulsion arrangement. Small and light, while
producing a huge power, the combined gasoline and steam turbine may be
positioned virtually anywhere within the ship and does away using the need for a
large engine space stuffed with machinery. The electric propulsion motors can be
placed near to the propeller shaft these people drive. And while the energy to
power efficiency ratios associated with conventional diesel engines might be up
to 52%, a modern land-based combined cycle LNG fuelled power plant will reach
efficiencies of 60%.
The downside regarding LNG as marine gas has always been
sees as the area needed for the storage from the insulated tanks, but the
creative designers have been able to situate 2 10, 960Cu. m. LNG fuel tanks,
with the put together gas and steam generator installation above them,
underneath the bridge superstructure. These two aquariums would provide
sufficient range for your ship to make an Asia/Europe round trip between
bunkering.
With no engine room to consume into the below-decks cargo room,
there would be more room with regard to cargo. And with the electric power era
separate from the electric ardeur, the designers have been provided even greater
flexibility, the design recommending three electric main engines can be arranged
on one typical shaft. Clean fuel, simple machinery systems with increased
redundancy and a high level of security might also be expected, say the
developers to the sort of maintenance techniques that are common practice within
the aviation industry. The design continues to be only a concept, but implies
that there is plenty of scope regarding innovation in the maritime planet.
Meanwhile, the biggest ever a couple of stroke diesel to be built is being
installed in another large container ship in Korea. There is lot for makers to
think about!
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