Home' Ships and Shipping : December 2009 Contents NEW MATERIALS, EQUIPMENT, TECHNOLOGY and SERVICES
SHIPS AND SHIPPING December 2009 33
In response to the market demand for very large CP propellers
up to and beyond 30,000kW and with diameters over eight
metres, MAN Diesel is expanding its propeller portfolio to add
two new, propeller hub-sizes -- VBS2080 and VBS2240
(20,80mm and 2,240mm hub diameters respectively).
These propeller sizes are typically destined for Con-Ro vessels,
shuttle tankers and special vessels with high ice classes, and
powered by MAN B&W two-stroke MC-C or ME-C main engines
that directly drive a CP propeller.
Potential for greater efficiency
As the potential for improving propeller propulsive
efficiency aft-ship optimisation is far greater than that for
improving diesel-engine fuel-oil economy, MAN Diesel has
devoted more resources to its CP propeller programme and
associated aft-ship systems in recent years, with the aim of
improving total propulsive efficiency by eight to ten percent
within the next three to five years.
Backed up by industry demand, MAN Diesel focuses on low
environmental impact and optimal fuel-oil consumption. While
these two factors can play against each other in diesel-engine
design, they go hand-in-hand with propellers since an increase
in propeller efficiency results in lower propulsion power
requirements and fewer emissions.
Where the correct approach to the vessel-design process is
taken and MAN Diesel are involved at an early stage in propeller
and aft-ship optimisation, propeller efficiency improvements and
bollard-pull increases of (respectively) five to seven percent and
eight to twelve percent can be attained compared to a standard,
conventional, CP propeller solution. Such solutions offer even
greater potential in retrofit projects where fuel-consumption
reductions of up to 12.5 percent have been reported.
The new Alpha propeller hubs, like the smaller,
well-proven ones, focus on reliability, low wear-rates and
service-friendliness as they are serviceable from the aft-end,
with no dismantling required.
Alpha is also the first CP market series where both the
stern-tube system and propeller hub can operate on
biodegradable oil, eliminating any risk to the environment and
guaranteeing internal propeller lubrication, even in the event
of seawater contamination.
MAN Diesel has produced Alpha Controllable Pitch propellers
for over 100 years and received its first patent in 1903. In the early
'90s, MAN Diesel expanded its propeller programme to cover the
power-range of all medium-speed, four-stroke engines. As a result,
according to MAN Diesel, the competitive Alpha CP propeller
programme is the leading brand in today's merchant-marine
segment with an unrivalled technical know-how. To date, more
than 7,000 Alpha propellers have entered service.
For further information contact:
MAN Diesel, Germany.
MAN Diesel expands CP propeller portfolio: Greater propulsion efficiency with Alpha propellers
Much of the existing MAN Diesel CP propeller range is manufactured in
The world's leading maritime service network Wilhelmsen
Ships Service has been chosen by Sea-Consortium, part of the
worldwide X-press Feeders Group, to handle all their traffic in
Taiwan, with immediate effect.
An agreement was reached in July, headed by Peter Sak,
General Manager of Wilhelmsen Ships Service Liner & Logistics
in Singapore, in collaboration with Sea-Consortium's Taiwan
office. The new contract responds to Sea-Consortium's
requirement for new full agency representation in Taiwan.
The first sailing handled by Wilhelmsen Ships Service in
Taiwan was M/V 'Duburg V.008', which sailed from Kaohsiung
on July 27 with 758TEUs, considerably more than the
400-450TEUs handled by Sea-Consortium's previous agent. The
company expects over 500TEUs per sailing in all future vessels.
X-Press Feeders Group operates a fleet of over 60 container
ships in scheduled feeder services covering Europe,
Mediterranean, Black Sea, Arabian Gulf, Indian Sub-Continent,
South East Asia and China coast. The group moves over two
million TEUs annually. X-Press is the largest and most
geographically diverse feeder carrier business in the world.
Sea-Consortium is very satisfied with Wilhelmsen Ships
Service performance. "We are impressed with their performance
so far," said Francis Goh, General Manager of Sea Consortium's
East Asia Hub. "If this high level of activity continues we expect
to expand our cooperation with them in 2010."
Wilhelmsen Ships Service will assist in developing new
markets for Sea-Consortium in coming years. The company also
has a wide range of other products and services that it expects to
be able to offer the X-Press group once it has proven its capability
in the agency and logistics operations.
For further information contact:
Wilhelmsen Ships Service, Norway.
Norwegian company Wilhelmsen and Sea-Consortium's collaboration means
Wilhelmsen will handle all of their partner's traffic in Taiwan
Wilhelmsen Ships Ser vice awarded full agency representation in Taiwan
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