New marine diesel engine from MHI-MME offers lower fuel consumption during slow steaming [More]
The new Wärtsilä 46DF engine has been specifically developed for the high-output market and is fuel flexible as well as power flexible with 1045 kW or 1145 kW cylinder power options.Compactness and reduced weight are the key attractions of the medium-speed engine, giving ship designers the option of increasing a new vessel’s revenue-earning capacity to get the most efficient propeller speed through mechanical (reduction gearing), or through diesel-electric transmissions. With the cruise ship, ferry, LNG carrier and offshore vessel markets for this type of engine in mind, the 46F engine design is based on the well proven Wärtsilä 46F engine, popular since the early 2000s, but with the advantage of being able to use natural gas, heavy fuel oil (HFO), or marine diesel oil (MDO) bunker fuel.
Engine detailsThe Wärtsilä 46DF extends Wärtsilä’s dual-fuel engine family by covering the power range from 6.2 MW to 18.3 MW at 6... [More]
American shipbuilders rarely deliver a ship that’s built for heavy duty offshore rig supply work that also turns heads, but a recent delivery from Houma, Louisiana-based New Generation Shipbuilding is already doing just that with the new 171-ft ‘Mr. Ernie’.
OSV Mr. Ernie: Photo credit: Cummins Hotips/Alan Haig-Brown
This striking vessel was built for same-name owner Ernie Vicknair and his partner Joe Gregory for rig support work in the Gulf of Mexico. According to Cummins Hotips, credit for the distinctive super-structure design goes to Incat-Crowther, although the design and engineering support team also included Parfait Maritime; Mino Marine LLC; and Farrell & Norton Naval Architects. The outcome of their collective effort contradicts the old saw that if you want to kill any idea in the world set a committee to work on it.Propulsion powerA pair of Cummins K38M Tier 2 diesels deliver a total of 2000 HP through Twin Disc MGX-5321 gears to 72x65-inch Bird Joh... [More]
More than half of all ship detentions involved ships of 20 years or more in age according to preliminary results from the recent Concentrated Inspection Campaign (CIC) on Propulsion and Auxiliary Machinery in the Paris MoU region. Problem areas included the propulsion of the main engine, cleanliness of the engine room and emergency source of power/emergency generator. There is a saying that research confirms what you already knew, and the essential inspection finding that things are more often not as they ought to be in an older engine room than in a more modern one is no exception to that rule. Why that should be so is not pointed up in the CIC preliminary report, so we’ll circle around that question here.Cleanliness is next to …There’s no excuse for badly maintained and dirty machinery in dirty engine room compartments – no matter what the age of the ship – but far more time and effort is needed to keep them up to the mark. Sleeves have to be kept... [More]
High fuel oil saving potential with reduced auxiliary engine running hours can be achieved with latest waste heat recovery system [More]
The worldwide first with Methanol powered vessels will navigate with DNV GL Class the classification society announced recently.
The four 50.000 tdw tanker have been ordered by the Swedish shipping company Marinvest and the Norwegian company Westfal-Larsen at the Korean shipyard Hyundai Mipo Dockyards. The classification follows according the DNV GL regulation for fuels with low flashpoint. The very first tank ship shall be delivered by 2016.DNV GL says the sulfur free fuel with low flashpoint (Low Flashpoint, LFL) of about twelve degrees Celsius becomes more and more attractive for the maritime industry, because this fuel fulfills the upcoming SOx-limit values in the emission control areas.The vessels, which will carry the additional DNV GL mark LFL FUELLED, feature a secondary bunker system as well as an automatically leakage warning system with shot-off function and flame protection systems. Further building safety measures include the position of the tanks and fuel pipes.
The new MAN B&W ME-LGI dual fuel engine which can burn sustainable fuels has been chosen by Vancouver-based Waterfront Shipping for a series of 50,000 dwt methanol carriers. The engines exploit a fraction of the cargo as fuel to run on 95% methanol ignited by 5% pilot oil. MAN Diesel & Turbo officially designates the ME-LGI engine ‘ME-B9.3-LGI’ (LGI stands for Liquid Gas Injection).Ole Grøne, Senior Vice President – Low Speed Promotion & Sales – MAN Diesel & Turbo, said: “This order represents a real market breakthrough for our Liquid Gas Injection engine and is the first such, commercial project that is not reliant on external funding. Simply put, the ME-LGI engine was chosen for these carriers because it is the engine best suited to the application. The LGI engine is designed to handle low-flash- point, low-sulphur fuels like LPG and methanol, etc. Consequently, its green credentials are striking with emissions of sulphur being alm... [More]
A 600 kW/cyl MAN 6L32/44CR main engine is to be installed in a new North Sea fishing purse-seiner/trawler, the first ever common rail engine to be installed in a vessel of this type in the Norwegian commercial fishing sector, according to engine builders MAN Diesel and Turbo.
Graphic rendering of the Kvannøy (courtesy Hansen Dahl)
A widely-used engine in merchant ships, the 32/44CR marine diesel engine was the manufacturer’s first all-electronic four-stroke engine, launched in 2006 to supplement the popular 32/40 series with a CR fuel- injected derivative. The six-cylinder version 32/44 engine (32 cm bore/44 cm stroke) is rated at 3,600 kW and uses the latest MAN Diesel & Turbo common rail technology to enable the flexible setting of injection timing, duration and pressure for each cylinder. Thus fuel consumption and emissions may be optimised at any point on the operating profile.
Norwegian shipping company, Nyholmen AS has chosen a system for their new 77.25-m ... [More]
Waste Heat Recovery Systems (WHRS) from specialist suppliers are becoming increasingly popular to boost the overall plant efficiency of large container ship propulsion installations, reducing fuel consumption and thus carbon dioxide emissions. This is evidenced by ABB’s recent US$23-million order to supply no less than fourteen new 8,800 TEU ships with their WHRS package.
MSC Container Ship: Photo credit ABB
The first seven post-panamax vessels will be built at Dalian Shipbuilding Industry Co. Ltd., (DSIC) and the other seven vessels at New Times Shipbuilding Co. Ltd., for China International Marine Containers Group Co. and Mediterranean Shipping Co. S.A (MSC). ABB say that their scope of supply includes power turbines with control valves, alternators, reduction gears and dynamic compensators. The package also includes two of their latest generation of turbochargers. The electrical output of the system is 1.65 megawatt (MW).The combination of large main engine size and high onboa... [More]
Tags: Waste Heat Recovery System, WHRS, container ships, slow-speed, marine diesel engine, ABB, contract, MSC, propulsion plant, engine efficiency, fuel saving
The remarkable significance of a new marine diesel technology just announced by Wärtsilä is that the low pressure, dual-fuel (gas/liquid fuel) benefits that are already available to 4-stroke engines, can now be applied to 2-stroke engines as well, thus making the technology available to the broader merchant shipping market.
The test engine: Photo courtesy of Wärtsilä
Wärtsilä, having announced the successful full scale testing on gas of an RT-flex50DF engine, say that the marine industry is already showing significant interest, evidenced by the fact that more than 130 industry executives from 89 leading shipping companies attended the recent introductory event in Trieste, Italy. In his opening speech at the event, Jaakko Eskola, Senior Executive Vice President and President, Wärtsilä Ship Power, stated: “Dual-fuel engine technology is the future; it is a tide that cannot be turned back. Gas is certain to play an increasingly imp... [More]