Home' Ships and Shipping : February 2011 Contents NEWMATERIALS,EQUIPMENT,TECHNOLOGYandSERVICES
MAN / Becker Marine: healthy cooperation fosters next generation efficiency
SHIPS AND SHIPPING February 2011 35
At a signing ceremony in Augsburg, Germany at the end of
2010 a Cooperation Agreement was settled between Becker
Marine Systems and MAN Diesel & Turbo.
On an individual basis, both the manoeuvring and rudder
specialist and the propeller and propulsion specialist have with
great success, over recent years, optimised their solutions in
terms of efficiency. The next step requires a more holistic
approach to all the design parameters associated with integrated
aft ship solutions. New possibilities are offered by today’s
advanced flow and pressure simulation tools such as CFD
(Computational Fluid Dynamics) and Becker and MAN have
agreed that this is where further improvements can be obtained,
giving a common target with clear benefits for ship designers,
operators and owners.
The cooperative agreement will open new potential for
thrust management, propulsion efficiency, cavitation control
and noise reduction, resulting in improved manoeuvrability,
lower fuel consumption, reduced exhaust gas emissions and
better onboard comfort.
The specific aim of the Becker/MAN cooperation agreement is
to further develop and optimise integrated propulsion and
manoeuvring solutions related to:
• Complementary design for MDT propulsion bulbs and BMS
high performance rudders,
• Combined optimisation of propellers and energy
• Steerable nozzles, high-efficient nozzle profiles and alignment
Klaus Deleroi, Senior Vice President and Head of MAN Diesel
& Turbo’s Business Unit Medium Speed, expressed his
satisfaction with the agreement: “Both parties, Becker and MAN,
have unique engineering know how to offer each other, and we
have great expectations for the combination and outcome of
these key competences.”
Until further notice, the cooperation agreement has a stated
duration of five years, and the practical implementation of the
cooperation into daily work will mainly affect Becker’s Hamburg
department and MAN’s Aft Ship Unit in Frederikshavn, Denmark.
For further information contact:
MAN Diesel & Turbo, Germany.
PureBallast, Alfa Laval’s unique and chemical-free system for
ballast water treatment, has entered its second generation
with the unveiling of PureBallast 2.0.
The updated system, which boasts a substantial reduction in
power consumption among a range of other improvements, will
also be available in an Ex version, PureBallast 2.0 EX.
Over 100 PureBallast systems have been sold since the system
was launched in 2006, and today more than 25 PureBallast
installations are already operating at sea.
The experience of installing and working with these systems
has been a key source of inspiration in developing the new
PureBallast 2.0. While the system’s advanced oxidation
technology (AOT) is the same as that of its predecessor,
PureBallast 2.0 offers additional advantages that will appeal to
both ship owners and shipyards. Among them are a major
reduction in power consumption and modifications that further
simplify PureBallast installation.
“PureBallast 2.0 directly addresses the needs we’ve
observed in our work with ship owners and shipyards,” said
Joakim Thölin, General Manager of Alfa Laval Marine & Diesel.
“And with the introduction of PureBallast 2.0 EX, we can now
meet even the needs of vessels with potentially explosive
Power savings and operating advantages
Most prominent among the improvements in PureBallast 2.0
are those related to its power supply. The new system consumes
a full 40 percent less power than its predecessor, which should
come as welcome news for ship owners. Shipyards, on the other
hand, will appreciate a higher degree of integration and a
simplified electrical system that reduces the number of
In terms of operation, PureBallast 2.0 has been designed with
a number of important modifications. Flow control is now
automatic, individual AOT units can be stopped for maintenance
and a pause function lets crews briefly suspend operation (e.g.
during heeling). In addition, PureBallast 2.0 features a
touchscreen interface with full-colour graphics that connects via
Modbus to other onboard automation systems.
Explosion-proof PureBallast 2.0 EX
For owners and builders of crude oil tankers, product tankers
and chemical tankers, whose volatile cargo creates potentially
explosive areas on board, the launch of PureBallast 2.0 has added
significance. PureBallast 2.0 EX, a version of PureBallast 2.0 with
additional safety modifications, is designed for Zone I, group IIC
and temperature class T4. This makes it suitable for installation
aboard most vessels that carry ignition-sensitive cargo.
“Vessels with Ex requirements are not exempted from ballast
water treatment regulations, yet there has so far been a lack of
treatment systems adapted to their business,” said Joakim Thölin.
“This makes the arrival of PureBallast 2.0 EX a highly anticipated
answer to very specific needs.”
Additional advantages for shipyards
According to the company, since PureBallast has been selected
for and installed aboard more vessels than any other ballast water
treatment system, Alfa Laval has spent more time working with
shipyards than any other ballast water treatment supplier.
The insights of this cooperation have fed directly into the
development of the new PureBallast system, where they can be seen
in the reduced power consumption and number of cabinets, as well
as in the system’s clear and installation-oriented documentation.
For further information contact:
Alfa Laval, Sweden. Web: www.alfalaval.com
Ready to go – the cooperation agreement between Becker Marine Systems and
MAN Diesel & Turbo signed and confirmed by Henning Kuhlmann, Becker
Marine Systems (left) and Klaus Deleroi, MAN Diesel & Turbo
The Alfa Laval PureBallast 2.0 system
Alfa Laval launches PureBallast 2.0 in standard and “Ex” versions
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