News | EQUIPMENT Propulsion
Wärtsilä’s low-
speed Chinese Jiangsu Rongsheng Heavy Industries Group Co Ltd (RSHI) has signed an accord with Wärtsilä to manufacture and sell the Finnish concern’s low-speed marine diesel engines in China. RSHI plans to build a new factory in Heifei to allow for the extra capacity required. Te plant will have a targeted annual engine production capacity aggregating 3600MW. Te agreement grants RSHI the right to manufacture
Wärtsilä low-speed engines between 48cm and 96cm bore, including those utilising common-rail technology. Support for the range will be provided by Wärtsilä’s Swiss outlet. Te first engine delivery is scheduled to take place by the end of 2009.
Contact Wärtsilä Corp, John Stenbergin ranta 2, PO Box 196, FI-00531 Helsinki Tel+358 10 709 0000 Fax +358 10 709 5700
www.wartsila.com
Power American
superpower American Superconductor Corp (AMSC) has received the first orders from the commercial marine market for its PowerModule-based electrical systems. Te systems will be used to manage more than 30MW of power altogether, aboard three megayachts of over 85m and one river cruiser of more than 100m in length being built in Europe. PowerModule converters are power dense and programmable, allowing them to be customised for
AMSC’s PowerModule is scheduled for installation onboard three megayachts and one river cruiser.
many electrical applications, and are also scalable for many different vessel types. Te electrical systems will enable reliable operation of the vessels’ propulsion motors, diesel generators, and power distribution systems by controlling power flows, regulating voltage, and monitoring system performance to maximise efficiency. AMSC will deliver all of the electrical systems in
2009. Te company also recently received an order for its
PowerModule power converters and system developer kit (SDK) from a Canadian maritime engineering firm. Utilising the SDK, which speeds and simplifies the development of power conversion systems, the customer will use the PowerModule converters to interface with batteries powering tugboats, increasing their efficiency and making them more environmentally friendly.
ContactAMSC, 64 Jackson Road, Devens, MA 01434- 4020, USA Tel +1 978 842 3000 Fax +1 978 842 3024
www.amsc.com
Noise and vibration Ships quieten with
MTU Tognum subsidiary MTU Freidrichshafen has signed a contract with Paulstra and Stop-Choc for the distribution of active engine mountings. With this cooperation, MTU said it was expanding its core competencies. The jointly-developed system, which MTU has
successfully trialled on test benches and in ships, is claimed to reduce the structure-borne noise emitted by diesel engines significantly. Te engines are installed on special rubber mountings as standard, and the new active mountings support the passive rubber mountings to make their noise reduction more effective. The active mountings are based on the noise
cancellation principle: they create sound waves with the same amplitude and the opposite polarity to the original structure-borne waves of the engine. In this way, noise and anti-noise cancel each other out to a large extent.
Contact MTU Friedrichshafen GmbH, Maybachplatz 1, 88045 Friedrichshafen, Germany Tel+49 7541 90 0 Fax +49 7541 90 5000
www.mtu-online.com
Ancillary equipment Brother’s in Aker
Peter Brotherhood Ltd has delivered three 5MW steam turbine-driven generator sets to Aker Floating
8 The Naval Architect April 2008
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