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DNV issues rule for low flashpoint maritime fuels

Ship & Offshore, 2013-06-25
The classification society DNV will release rules for using low flashpoint fuels such as methanol for bunker fuel on July 1st.

Interest for methanol as ship fuel is growing in response to the need to reduce NOx and SOx emissions. However, with a flashpoint of just 12°C, it poses safety challenges, and DNV's new notation, an industry first as the classification society stated, covers every aspect of safe design. Methanol is most commonly produced from natural gas but it can also be produced from a wide range of biomass. It has a lower flashpoint than conventional fuel, so additional safety barriers are required. Flashpoint is the lowest temperature at which a volatile liquid can vaporise to form an ignitable mixture in air.
Methanol has a relatively low flashpoint, is toxic when it comes into contact with the skin or when inhaled or ingested and its vapour is denser than air. As a result of these properties, additional safety barriers are required by DNV.
The new mandatory notation LFL FUELLED covers aspects such as materials, arrangement, fire safety, electrical systems, control and monitoring, machinery components and some ship segment specific considerations, according to DNV.
 
 
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