Wärtsilä tinkering reduces methane slip in 25DF engines
Wärtsilä’s 25DF engines can be made to reduce methane slip by 41% with the new upgrades (Source: Wärtsilä)
Wärtsilä confirmed this week that NextDF can be retrofitted to existing 25DF engines, meaning that various shipowners now stand to benefit from reduced methane slip.
The move follows the introduction and retrofit of similar technology on a Wärtsilä 31DF series engine last year, allowing Finnish-Swedish ferry line Wasaline to reduce methane slip by 10% on its Aurora Botnia ferry. Wärtsilä claims that a reduction of as much as 41% is possible.
“Enhancing dual-fuel technology to further reduce methane emissions will have a major impact on the long-term viability of LNG as a marine fuel,” said Wärtsilä Marine VP of Power Supply Stefan Nysjö. “Our workaround reducing methane slip and GHG emissions is part of Wärtsilä’s effort to continuously improve efficiency and reduce emissions of our products. This innovation is one more very important step along the road to decarbonisation.”
