Wärtsilä reported it will supply six four-stroke, medium-speed Wärtsilä 20 engines, four for a new 93-m windfarm support vessel and two for a new research vessel
All six engines are for vessels that will operate within Chinese domestic waters, requiring compliance with the country’s China’s stage II, or C2 emissions standard. This legislation entered into force in July 2021 and is applicable to vessels sailing on China’s inland waterways, coastal areas, and in most rivers. It covers Chinese domestic bulk carriers, feeder containers, oil tankers, passenger roro ferries and government vessels.
Each of the engines will be equipped with Wärtsilä nitrogen oxide reducer (NOR) technology and have C2 compliance certification.
“These orders demonstrate how our engine technology, future fuel research and digitalised solutions are enabling our customers to operate in full compliance with the most stringent environmental legislation,” wrote the Finnish technology company in a social media post.
Capable of operating on low viscosity fuels of 1.8 cSt up to 730 cSt HFO, the 200-bore Wärtsilä 20 is fully compliant with IMO Tier II, and when equipped with a Wärtsilä NOR, is compliant with IMO Tier III. Using a Wärtsilä NOR reduces NOx emissions by 95%, according to Wärtsilä. The in-line engine is available in four, six, eight and nine cylinders, with outputs of 200 to 220 kW per cylinder at speeds of 1,000 to 1,200 rpm. More than 6,000 of these engines have been delivered globally since they were introduced in 1992.
“Wärtsilä is heavily focused on making the decarbonisation of shipping a reality”, said Wärtsilä Marine Power East Asia and China sales director Östen Lindell. “China’s C2 legislation sets challenging limits on emissions of nitrous oxides, hydrocarbons and particulate matter. The fact that we can not only meet these requirements but also do so with engines that are compactly dimensioned to suit the engineroom design, sends a clear message on our capabilities to the market,” said Mr Lindell.
