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]
If power is lost to a DPS-controlled drill-ship’s thrusters there is a risk that the rig will drift off its position, which can potentially give rise to huge impacts and the risk of damage to the subsea equipment (Blow Out Preventer (BOP), Riser, and associated equipment). Along with such an unfortunate occurance also will come significant financial impacts; the cost of repairs, new equipment and lost day rates. Clearly, in the event of a power loss, the speed of engine re-start is of critical important.
Drill-ship building scene: Photo courtesy of Maersk Drilling
Since 2011 Maersk Drilling has invested USD 4.5 billion in seven new drilling units; three ultra harsh environment jack-ups at Keppel FELS in Singapore and four ultra deepwater drill-ships at Samsung Heavy Industries in South Korea. In the design of the drill-ships’ electrical propulsion system, Maersk say that their engineers, set the engine emergency start-up time bar higher, looking for a decrease in the usual ... [More]
A RoRo ferry ordered by Italian ferry operator Visemar from the Cantiere Navale Visentini shipyard near Venice, is to be equipped with a complete MAN propulsion package, powered by a pair of 9L32/44CR medium-speed diesel engines.
Visemar RoRo Ferry: Image courtesy of MAN Diesel & Turbo
MAN Diesel & Turbo optimised the propulsion system for the new RoRo, which includes MAN Alpha CP propellors (driven through Renk low friction gearboxes) in close consultation with the shipyard and NAOS, the Italian RoPax ship-design specialist. These project-specific propellors deliver a very high propulsive efficiency, leading to substantial fuel-oil savings for the complete propulsion plant.Main EnginesThe 9L32/44CR engines, which comply with IMO Tier II exhaust gas emission regulations, each develop 5,040 kW at 750 rpm and are complemented by 2 × Renk RSV 900C gearboxes and 2 × Alpha CPP propellers.These engines use the latest MAN Diesel & Turbo common rail technology which all... [More]
Dual-fuel gas injection marine diesel engines gain popularity with LNG carrier operators, confirmed, say MAN Diesel & Turbo (MDT) by a recent order from Teekay Corporation for two 173,400 cubic metre capacity LNG carriers to be powered by ‘M’-type, electronically controlled, gas injection (ME-GI) 5G70 engines. A contract option with builders, Daewoo Shipbuilding & Marine Engineering (DSME) of South Korea, allows for three more of the same large ships.Unveiled at a major event at MDT’s Copenhagen Diesel Research Centre last year, the ME-GI engine represents the culmination of many years’ work that began in the 1990s with the company’s prototype MC-GI dual-fuel engine that entered service at a power plant in Chiba, near Tokyo, Japan in 1994.
MAN ME-GI engine test – engine in background: Photo credit MAN
A full-scale test on the 4T50ME-GI research engine in Copenhagen demonstrated that the engine, operating on high-pressure gas delivered from a ... [More]
Container ship operators looking for the lowest possible fuel oil consumption at any engine load will be interested to hear word from MAN Diesel & Turbo that the first super-long-stroke large bore two-stroke engine specifically designed for them, the S90ME-C9.2, has just successfully completed trials on Hyundai Heavy Industries Engine & Machinery Division’s test bed.
Marine Diesel Engine MAN S90ME-C9.2: Photo credit Man Diesel & Turbo
The new engine, of reduced size for container ship engine rooms (although the largest ever designed by MAN) is based on the VLCC-optimised S90ME-C8 engine, as operators look to reduce operating costs through slow steaming, turbocharger cut out and low-load engine optimisation; all of which are offered by the new engine. Engine Design Concept – MAN S90ME-C9.2
Low-speed two-stroke main engines of MAN’s existing MC type, with a chain driven camshaft, have limited flexibility with regard to fuel injection and exha... [More]
Variable Turbine Area (VTA) geometry for the largest exhaust-gas turbochargers, introduced by MAN Diesel & Turbo about four years ago, recently topped the hundred sales mark according to the manufacturers, as the technology gradually proved itself effective in reducing fuel-oil consumption in medium and low-speed marine diesel engines.The VTA is designed for fitting on supercharged large-bore diesel engines with varying load profiles. Due to its adjustability, the VTA efficiently adapts to a wide range of engine operations, making it particularly useful for the present-day trend to slow-steam bulkers, tankers and container ships.MAN say that the first VTA unit delivered has so far accumulated over 20,000 operating hours running on engines using heavy fuel oil (HFO) to give fuel consumption savings of up to 5 g/kWh.VTA Turbocharging
VTA technology enables the quantity of charge air to be more precisely matched to the quantity of fuel injected, encouraging reduced specific fuel co... [More]
One hundred years ago, MV Selandia displacing 7,000 t, entered service in 1912 and was the lead class of five ships with the other four sister ships built at various shipyards in Europe. They all had twin Burmeister & Wain four stroke crosshead engines type DM 8150-X giving a service speed of 11 kn. On the Selandia’s acceptance trials she reached a speed of 12.2 kn. The engine was an in-line eight cylinder with bore of 530 mm and stroke of 730 mm and the bmep of 6.4 bar produced 920 kW at 140 rpm. There were two 186 kW auxiliary diesel engines each with four cylinders. Each was driving a 220 V DC generator providing on board electrical power. Electric motors were used to start the main engines by turning the 6.5 ft (2 m) diameter flywheels. [More]
Tags: Burmeister & Wain, MAN Diesel & Turbo, Selandia, Dr Rudolph Diesel, Sulzer, Doxford, Junkers, MAN, Werkspoor, Krupp, DM 8150-X
Incat, Australian builder of fast ferries has produced a design for a modern day fast train ferry with a capacity for 44 container or special wagons aimed at speeding up rail freight across water. The design follows the Incat preference for a catamaran hull of 1,700 dwt with a LOA of 426 ft . Propulsion is by four medium speed MAN 20V28/33D diesels each rated at 12,064 hp (9 MW) at 1,000 rpm powering a Wärtsilä LJX 1500 SR waterjet. Running with 200 tons deadweight, speeds of 39+ kn and fully laden with 1,700 t speeds in excess of 30 kn may be expected. In addition to the 900 rail lane meters on the main deck, there is an upper deck for road vehicles and passenger accommodation for up to 200 passengers and crew. [More]
The Russian Sovcomflot (SCF Group) ordered two ice2 class LNG carriers last year with STX, S.Korea. The Atlantic-max carriers have capacity of 170,000 cubic meters using a reinforced membrane structure. Vessels of this capacity have a LOA of approximately 980 ft and beam of 150 ft. The vessels use a dual fuel electric propulsion system giving 19.5 kn comprising two 8L51/60DF engines of 8MW at 514 rpm and two 9L51/60DF engines of 9MW at 514 rpm. The engines will be built at the MAN Augsburg factory for delivery end 2012. [More]
Researchers in the Faculty of Maritime Studies in Rijeka, Croatia, used a Kongsberg Full Mission Engine Simulator to emulate a typical single screw VLCC equipped with a direct drive MAN 5L90MC two stroke marine diesel engine while operating in various sea conditions, from calm to the extreme Force 10 condition. The purpose of the research was to investigate and analyse external sea conditions and their effects on ship’s propulsion system dynamics and operating possibilities. The resulting research paper ‘Impact of the Environmental Sea Conditions to Ship’s Propulsion Engine Dynamics’ was presented by lead researcher Vinko Tomas at the 15th International Research Expert Conference – ‘Trends in the Development of Machinery and Associated Technology’ in Prague, Czechoslovakia, 12 − 18 September 2011. Such is the sophistication of the Kongsberg simulator the research team was able to monitor the relevant propulsion engine variables and parame... [More]