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Using an abundant, if toxic, resource to power the maritime fleet. A mature future fuel already in use - but will it become dominant? Numerous NGOs protested against the IMO earlier this year putting biofuels in its Global Fuel Standard, but the “fuel versus food” debate seems to have been solved by deriving fuels from waste. Technically the cleanest possible fuel source available to the maritime world and one that has the longest history, dating back to the 1950s. Why is it not in common, non-military use? LNG is currently the most popular lower carbon fuel, but with bio and e-LNG it could move beyond its current transition fuel status supported by extensive existing infrastructure. Read More Read More Read More Read More Read More
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Propulsion & Future Fuels Conference 2026
The Motorship’s Propulsion & Future Fuels is the leading international conference on powering shipping’s emissions-cutting ambitions.
The 2026 Conference will take place from 8th - 10th December in Hamburg, Germany and will offer a meeting place to learn, discuss and knowledge-share the latest developments in efficient power and propulsion technology plus alternative low flashpoint and low carbon fuels.
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Reducing engine bore size to boost existing vessel efficiency
Andreas Wiesmann, general manager of strategy and business development for 2-stroke engine services at Wärtsilä Marine, explores how radical derating can support growing ship efficiency demands.
In 2022, Wärtsilä concluded one of its most significant vessel conversion projects to date; the pilot project for a radical derating solution designed to keep mid-life two-stroke engine powered vessels in compliant service for longer. The conversion involved reducing the bore size of a 12RT-flex96C-B engine to become a 12RT-flex72R. That is a 25% reduction on one of the biggest engines in the market.
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