New tanker class employs electric- drive cargo pumps
ERMAN shipbuilder Lindenau has added yet another tanker design to its portfolio of 'green' ships already delivered - one of the newest being the 37,500dwt Seychelles Pioneer, presented in our newly published annual Significant Ships of 2005. The latest tanker is a 40,500dwt model, which continues the Lindenau safety tanker class 2010, and four orders have already been secured from German Tanker Shipping, an owner well-known to this Kiel yard.
G
All four vessels, which will have capacities of 47,000m3
, will feature Hamworthy Svanehøj
cargo-handling systems employing deepwell electric-drive pumps, and will be classed with Germanischer Lloyd. Deepwell drives, with the electric motor mounted on the weather deck, can provide a solution to today's demand for a simplified distributed pump layout connecting to the pump through a long drive shaft. Hamworthy is making the benefits of deepwell cargo pumps available to ever-larger tankers by developing its electrically driven ranges. The Svanehøj CKL pump series comprises three models: the CKL 200 rated at 600m3
/h, the CKL 250 at 800m3 300 at 1200m3/h to 1800m3 /h, and the CKL /h. Control will be
by the frequency-converter method, which will also be employed for the two tank-wash pumps. The configuration on the new Lindenau ships will comprise 12 cargo/slop tanks plus a residue tank. The 10 main cargo pumps will be CKL 200 units, each yielding 600m3
(metres liquid column). The two slop pumps will be of the DL design, capable of 250m3 120mlc.
/h at 120mlc /h at
Combined with a double-volute pump house, the single-suction single-stage impeller of the Hamworthy Svanhøj CKL deepwell pump, which will be fitted to the new Lindenau tankers, is said to reduce axial and radial forces, and to minimise wear on pump bearings.
More ships at Fincantieri for Carnival group
HE mighty Carnival group has placed yet another block cruise liner order for its various member companies with its preferred partner, the giant Italian shipbuilder Fincantieri. At the very end of last year, a US$2 billion contract was signed for four new ships. These comprise an 86,000gt design for Holland America Line (2044 passengers), to be constructed at the Marghera (Venice) yard, with an option for a sister, and a 116,000gt, 3100- passenger ship for Princess Cruises - a sister of Emerald Princess, which is already under construction at Monfalcone.
T
Athird liner will be a 130,000gt giant to carry 3600 passengers - the new post-Panamax super standard - for Carnival itself, plus an option on a sister.
Again, these vessels will be
constructed at the Monfalcone yard. Finally, group newcomer, Costa Crociere, will secure an additional ship - a sister for the 112,000gt Costa Concordia.
This will be built at the
Sestri Ponente yard in Genoa, from where recent Costa ships, including the 105,000gt Costa Fortuna, able to carry 3470 passengers and featured in Significant Ships of 2003, have been delivered.
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THE NAVALARCHITECT FEBRUARY 2006
59
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