Dual fuel powerplant

Niigata-28AHX-DF

But, will it fit in a Peugeot 108 hatchback?

 

ClassNK has granted approval to the design of the new 28AHX-DF dual-fuel engine developed by Niigata Power Systems Co., Ltd. The new engine is slated to be used as the main engine on a new LNG-fuelled tugboat being built by Keihin Dock Co., Ltd. for NYK Line.

The vessel will be Japan’s first LNG fuelled vessel, excluding LNG carriers.  Last year, Keihin Dock Co delivered Japan’s first hybrid tug, Tsubasa, to NYK Line.

New regulations for Emission Control Areas (ECA), including new stricter limits on sulphur emissions as well as the IMO’s Tier III NOX emission limits, are driving demand for new engine and emission control technologies. The high costs associated with low sulphur fuels, and the increasing availability of LNG is driving both vessel owners and machinery manufacturers to consider the use of LNG as a vessel fuel.

Niigata’s 28AHX-DF is a medium-speed duel-fuel engine with a maximum rated power per cylinder of 320kW and was developed for use primarily in offshore support vessels and tugboats. The engine, which operates on both diesel fuel and LNG, will meet the strict 0.1% sulphur emissions regulations in the ECA that are set to go into effect in 2015, as well as comply with the IMO’s stringent Tier III NOx emission requirements.

Technologies used in the new engine were developed with the support of Japan’s Ministry of Land, Infrastructure, Transportation & Tourism (MLIT), as well as ClassNK as part of the society’s Joint R&D for Industry Program.

Mr Yukihisa Shibata, General Manager of ClassNK’s Machinery Department said: “The demand for dual-fuel engines is increasing as IMO restrictions tighten and the industry recognizes the importance of environmental accountability. Supporting the development of such low-emission engines is one way we can help ship operators and manufacturers practically address the challenges of these new regulations, and encourage the wide

spread use of this new technology.”The state-of-the-art dual-fuel engine has a maximum rated speed of 800 min-1 with a cylinder bore of 280mm and a 390mm stroke. The model engine will undergo trial operational testing and is expected to receive type approval from ClassNK in December.

Ed! All very interesting but no specific fuel consumption figures are included in the article, poor show, bah and humbug.

About allatsea

Sixty year old master-mariner. Absolutely gorgeous. Well wedged.....when compared to a Nairobi street urchin. Sorted, in that I haven't been in court recently. Hopelessly optimistic, terminally disappointed. Good with cats and other fluffy things. No musical talent. Generous to a fault provided it's someone else's round. Political centreist with far right and left viewpoints. A green activist from the hydrocarbon position with nuclear leanings. Averse to avarice but always happy to receive lottery wins, gifts, windfalls, legacies, prizes and wet sloppy kisses.
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