Wartsila moves forward in four-stroke propulsion
Wärtsilä has inaugurated a new factory in China, and upgraded its CP propeller deaign, as well as contracting to supply a dual fuel two-stroke plant for a bulk carrier.
Wärtsilä recently inaugurated its new engine factory in Guangdong Province, China. The factory, known as Yuchai Engine Co, is a joint venture between Wärtsilä and Yuchai Marine Power. The new factory covers a total area of 266,700m² and will be used for the assembly and testing of medium speed engines in the 20, 26 and 32 series. It is expected to be in full production before the end of 2016. Wärtsilä says that the joint venture will strengthen its competitiveness in the Asian markets and increase its focus on the offshore and special segments in China.
"As China is the world's major supplier of newbuild ships, the Chinese market plays a central role in Wärtsilä's global growth strategy. By inaugurating another Wärtsilä joint venture in China, we not only demonstrate our strong commitment to this important market, but also take another significant step towards enhancing our presence in the region. Strengthening our local production capacity is an important part of this strategy. Through this partnership with Yuchai, China's leading high-speed engine manufacturer and market leader, we are convinced we can serve our customers in China in the best possible way and further reinforce our market leadership position for medium-speed engines," said Wartsila Corporation CEO Björn Rosengren.
Wartsila says that the increasing use of LNG as a marine fuel is further emphasised with the latest order for its dual-fuel engine technology. A new cement carrier being built at the Scheepswerf Ferus Smit yard in the Netherlands will feature a six-cylinder Wärtsilä 34DF main engine, making it the first bulk carrier to adopt Wärtsilä’s multi fuel capability. The ship has been ordered by JT Cement, a joint venture between Erik Thun AB of Sweden and KG Jebsen Cement of Norway. In addition to the main engine, Wärtsilä will supply an enclosed gas valve unit for easier installation and additional engine room safety.
The ship will be able to operate on LNG and a variety of other fuels, including MDO, bio fuel and HFO. In gas mode, the engine fulfils IMO Tier III requirements without the need for any after treatment systems, said to be an important factor since it will operate in Northern European waters, much of the time in the ECA.
“The arguments in favour of gas fuel are so strong that it is no surprise that more and more vessel types are adopting its use. LNG is no longer a ‘niche’ fuel for a few specific types of ship; nowadays virtually all merchant vessels can take advantage of the environmental and cost saving benefits that LNG fuel offers. Wärtsilä is proud to be a technology leader in making this possible,” said Lars Anderson, vice president, four-stroke sales, Wärtsilä Ship Power.
Wärtsilä has long standing relationships with both the shipyard and owner, having previously supplied a number of engines to these customers. The current vessel is scheduled for delivery before the end of 2015, and the company says it may be followed by a sister ship.
At the recent SMM exhibition in Hamburg, Wärtsilä lauched its latest large CP propeller range. This is based on the previous E-hub type, but with improvements offering greater efficiency and reduced environmental impact.
The new propeller system is intended to address the demands of medium and large size vessel owners, and is particularly applicable for special vessels with DP capabilities, and ships having ice class. Among the benefits cited are an increased load capability, high propulsive efficiency, reduced fuel consumption, reliability and reduced environmental footprint.
The design integrates the propeller and the hub with hydraulics and propulsion controls. The designers used CFD technology to optimise propeller performance and the interaction between propeller and hull. According to Wärtsilä, this helps optimise overall propulsive efficiency, making significant fuel savings possible. Because each propeller can be individually customised to meet specific application requirements, the vessel’s EEDI/EEOI is improved.
The hub design features forced lubrication and allows the use of EALs, as required for operation in US inland and coastal waters, the whole system being prepared to meet the US EPA VGP 2013 regulatory requirements. The new design allows for compatible hydraulics and the flushing of lubrication oil.
“The WCP propeller system is the result of the work of highly experienced design engineers in our European R&D headquarters having access to the very latest and most sophisticated software and analysis tools. Furthermore, our long history and experience in designing propulsion systems gives us extensive product knowledge, having developed design tools based on a large number of model testing, full-scale measurements and research activities. Co-operation with well known research institutes and universities worldwide ensures our prime position when it comes to propulsion systems and products,” said Wim Knoester, director, propulsion sales, Wärtsilä Ship Power.
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