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MAN ME-GI engine to power world’s first ethane-powered LNG

MAN Diesel & Turbo’s G50 engine has successfully passed its Type Approval Test at Mitsui in Japan. Upon entering service, the engine will power the world’s first ethane-fuelled eco-friendly LEG (Liquefied Ethane Gas) carrier – the first of three such vessels to be built in China by SinoPacific Shipyard for the German shipowner, Hartmann Reederei. Besides operating on ethane, the flexible ME-GI engine will be able to operate on HFO, MDO and gas oil.

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IMO NOx Tier III effective from January 2016

DNV GL has issued statutory alert to remind that IMO NOx Tier III requirements will take effect in the North American and US Caribbean Emission Control Areas (ECAs) from January 1st 2016. The new requirements are applicable to all vessels with keel-laying on or after January 1st 2016 with an engine output of ≥130kW. DNV GL highlights that it is important to be aware of how to prove compliance and how the requirements will be enforced.

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World's first MAN B&W ME-GI in service

Nakilat, in association with Qatari LNG producers Qatargas and RasGas Company Limited and engine manufacturer MAN Diesel & Turbo, recently celebrated the success of the ME-GI project.The project involved retrofitting chartered Q-Max vessel, Rasheeda, with a gas-burning M-Type Electronically Controlled – Gas Injection (ME-GI) System, which has now been successfully commissioned.The Qatari-owned Q-Max vessel is the world’s first low-speed marine diesel engine to be converted to use LNG as a fuel. The retrofit modification meets the current known and future stated global emissions regulations.Nakilat’s Rasheeda built in 2010 is a 266,000 m3 LNG carrier with two MAN B&W S70ME-C HFO-burning engines, which have been converted to the dual-fuel ME-GI concept. The shipyard operator Nakilat-Keppel Offshore & Marine (N-KOM) carried out the ship’s conversion at its Erhama bin Jaber Al Jalahma Shipyard facilities in the major Qatari port of Ras Laffan Industrial City.The project collaborators, including MAN PrimeServ, installed the ME-GI system on the vessel at the Erhama bin Jaber Al Jalahma shipyard in Qatar in June 2015. The partner for the ME-GI fuel supply system is TGE.Christian Ludwig, Head of Retrofit and Upgrades, MAN PrimeServ, said: “This is a fantastic milestone in our company’s history. It is a lighthouse project, ...

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Upcoming environmental regulations for emissions to air – IMO NOx Tier III

 DNV GL has issued Statutory News regarding the upcoming environmental regulations for emissions to air.The IMO Tier III requirements reduce nitrogen-oxide emissions (NOx) by approximately 76% in comparison to a Tier II engine. This requirement only applies to new vessels and engines. It poses a significant challenge to engine designers, as they need to apply NOx-reduction measures with the help of other engine technologies.Relevant for all vessels with keel-laying on or after 1 January 2016 with engine output of 130kW and above, when operating in North American and US Caribbean Sea Emission Control Areas.The IMO NOx-emission limits apply to diesel engines and depend on an engine’s maximum operating speed (n, rpm), as presented in the table below. Tier I and Tier II are global requirements, whereas Tier III standards only apply to current existing Emission Control Areas (ECAs) for NOx (North American and US Caribbean Sea).In future ECAs that regulate NOx emissions, the Tier III standards will apply to ships with keel-laying on or after the date of adoption of such an ECA.When the global Tier II limits came into force in 2011, engine-makers were able to tune the engines to comply with these new emissions limits. Tier III poses ...

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Wärtsilä 31 engines selected for new generation icebreaker

 The recently introduced Wärtsilä 31 engine has been selected to power a state-of-the-art new generation icebreaker currently under construction at the PJSC Vyborg Shipyard. The ship is being built on behalf of FSUE Atomflot, the enterprise of ROSATOM, the State Corporation for Atomic Energy. The order was signed in September.When delivered, the icebreaker will serve the Yamal LNG project in Sabetta, located northeast of the Yamal peninsular in Russia. The project is one of the largest industrial undertakings in the Arctic. Fuel efficiency and reliability were the two major deciding factors behind the choice of the Wärtsilä 31 engine.Other key considerations in the decision process were the engine’s operational flexibility and its outstanding performance in extreme environmental conditions. The new vessel will operate in temperatures as low as minus 50°C.The new generation icebreaker Aker ARC 124 will feature three 8-cylinder Wärtsilä 31 engines. The installation will also include Wärtsilä’s online monitoring of the engines, thereby enabling their operating condition to be closely followed remotely. An additional characteristic of the newly introduced vessel is that it will feature a totally new approach to maintenance. The first major service required by the Wärtsilä 31 comes only after 8000 running hours (compared to ...

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