Wärtsilä has introduced its NextDF technology for a third engine, the Wärtsilä 46TS-DF dual-fuel engine. While operating on liquefied natural gas (LNG), the Wärtsilä 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...
NextDF
Wärtsilä adds NextDF tech to its 25DF engine
Wärtsilä has introduced its NextDF feature for the Wärtsilä 25DF dual-fuel engine. While operating on LNG, the NextDF feature reduces methane emissions to less than 2% of fuel use across all load points, achieving as low as 1.1% in a wide load range. Additionally, the nitrogen oxide (NOx) emissions are lower than on the standard Wärtsilä 25DF engine which already has emission levels below IMO Tier III.
In 2023, Wärtsilä first introduced the new technology for its Wärtsilä 31DF engine. Thanks to...
https://www.marinelog.com/shipbuilding/engines-fuel/wartsila-adds-nextdf-tech-to-its-25df-engine/