W\u00e4rtsil\u00e4 introduces NextDF methane slip reduction for a third engine
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W\u00e4rtsil\u00e4 has introduced its NextDF technology for a third engine, the W\u00e4rtsil\u00e4 46TS-DF dual-fuel engine. While operating on liquefied natural gas (LNG), the W\u00e4rtsil\u00e4 46TS-DF engine with NextDF feature reduces methane emissions to less than 1.4% of fuel use across all load points, achieving emissions as low as 1.1% in a wide load range. This is nearly three times lower than the default methane slip factor of 3.1% specified in the FuelEU Maritime and IMO lifecycle guidelines for Otto-cycle four-stroke dual-fuel engines. Through improvements made to the combustion control, and through optimizing engine performance, the feature also minimizes nitrogen oxide (NOx) and CO2 emissions. <\/p>\n
The initial installation of the W\u00e4rtsil\u00e4 46TS-DF engine with NextDF feature will be onboard the cruise ship, MSC World Asia<\/a><\/em>, being built by Chantiers de l\u2019Atlantique for MSC Cruises.<\/p>\n W\u00e4rtsil\u00e4 first introduced the NextDF technology for its W\u00e4rtsil\u00e4 31DF engine in 2023 and made it available on its In 2023, and made it available on the W\u00e4rtsil\u00e4 25DF in November 2024.<\/a><\/p>\n LNG is an important transition fuel as the marine industry strives to reduce its carbon footprint. However, the main component of LNG is methane and when burned as a fuel, a small amount may not combust properly, leading to methane escaping into the atmosphere.<\/p>\n \u201cNextDF technology reduces the environmental impact of vessels that use LNG as fuel, without compromising on performance or operational stability ,\u201d says Stefan Nysj\u00f6, vice president of power supply at W\u00e4rtsil\u00e4 Marine<\/a>. \u201cImportantly, this makes it easier for ship owners to comply with increasingly stringent decarbonization targets and legislation.\u201d<\/p>\n Launched in 2022, the W\u00e4rtsil\u00e4 46TS-DF engine has a two-stage turbocharging to deliver high levels of efficiency and power density across a wide operational range for vessels in all segments of the industry. This level of efficiency reduces fuel consumption and lowers emissions, while being easily retrofittable for sustainable fuels as they become widely available. By applying the NextDF feature, says W\u00e4rtsil\u00e4, the engine will have the lowest methane emissions and GHG emissions in the 1MW+\/cylinder power range.<\/p>\n The W\u00e4rtsil\u00e4 46TS-DF with NextDF feature was developed as part of the EU co-funded GREEN RAY project]\u2014short for New GeneRation marinE ENgines and Retrofit solutions to Achieve methane abatement flexibilitY\u2014a five-year initiative launched in June 2022 under the Horizon Europe program<\/p>\n<\/p>\n The post W\u00e4rtsil\u00e4 introduces NextDF methane slip reduction for a third engine<\/a> appeared first on Marine Log<\/a>.<\/p>\n<\/div>\n