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3IMPROVING FUEL<br />

EFFICIENCY & CUTTING<br />

AIR EMISSIONS<br />

The Mark V model has been subjected to<br />

extensive tank testing (see fact box) to find<br />

a hull design which will enable it to achieve<br />

optimum fuel efficiency. It is also estimated<br />

that <strong>the</strong> turbine generator system will<br />

cut CO2 emissions. Toge<strong>the</strong>r, those two<br />

elements of <strong>the</strong> ship design will reduce <strong>the</strong><br />

emission to air per cargo unit by 10-15%.<br />

4 PAYING<br />

CAREFUL<br />

ATTENTION TO<br />

WATER TREATMENT<br />

Mark V vessels will be fitted with first<br />

class water ballast treatment systems to<br />

stop any harmful transfer of micro-organisms<br />

between ecosystems. Specifically,<br />

such systems ensure that when a<br />

vessel picks up water at a particular point<br />

<strong>for</strong> ship stability purposes, <strong>the</strong> organisms<br />

which that water contains do not affect<br />

biodiversity by being deposited in o<strong>the</strong>r<br />

areas along <strong>the</strong> vessel’s route. The ships<br />

will also have first class, 5ppm (parts per<br />

million), bilge water treatment systems<br />

and biodegradable stern tube oil.<br />

fast facts<br />

VESSELS OF THE FUTURE<br />

THOROUGH TESTING<br />

<strong>the</strong> tank testing <strong>for</strong> <strong>the</strong> mark V vessels<br />

included some non-standard elements, specifically<br />

model tests in waves and more than<br />

one round of testing. <strong>the</strong> latter is unusual<br />

<strong>for</strong> ships tailor-made in small numbers to<br />

an owner’s specification. However, WWL<br />

believes it is <strong>the</strong> only way to make use of<br />

things learnt through <strong>the</strong> model testing<br />

process.<br />

VENTURE 3 2008 19

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