MAN Diesel continues to foster two-stroke development

SCANDINAVIAN MARITIME INDUSTRY | NOR-SHIPPING MAN Diesel continues to foster two-stroke development LOW-SPEED-DIESEL ENGINES | MAN Diesel is still focussing the development of diesel engines as demonstrated recently with two significant two-stroke announce- ments. In the first development, the com- pany announced the production of its first Type K80ME-C9 low-speed engine and its successful passing of its Type Approval Test in Korea. The engine is one of a new, high- power generation that displays a very high power density. Around the same time, MAN Diesel could also report the entry of the very first S40ME-B engine into service. The ME-B range is MAN Diesel’s most sophisticated, electronic offering. New K80ME-C9 Engine exceeds ex- K80ME-C9 S40ME-B pectations MAN Diesel broadened its product portfo- even very low load for indefinite periods of pressure, giving rise to an improved fuel lio with the development of its new, Type time, whilst offering a substantial reduction consumption that is 2 g/kWh lower than K80ME-C9 two-stroke, low-speed engine. in fuel-oil consumption compared to con- existing, small-bore engines. Ole Grøne, The ME-C9 engine recently passed the final ventional engines at such low loads. During Senior Vice President, MAN Diesel Promo- milestone on its way to commercial appli- testing, the performance of the 7K80ME-C9 tion and Sales said: “Market reception for cations in the marine sector with a success- engine, an engine that is fully compatible the ME-B series has been very positive to date ful Type Approval Test (TAT). with IMO Tier-II regulations, exceeded ex- and, with over 100 orders recorded thus far, The first production version of the MAN pectations and delivered a lower fuel-con- we are very happy with its success.” B&W-branded engine successfully complet- sumption than we anticipated.” According to ed its TAT programme at Hyundai’s (HHI- MAN Diesel the new engine type has a 20 % The ME-B concept EMD) works in Ulsan, Korea. HHI-EMD’s higher power density compared to the pre- MAN Diesel introduced the ME-B concept in two-stroke engine assembly and test shop vious mark. The ME-C9 is not only a more mid-2006 with the small-bore S35ME-B and #2 was the venue for the test and hosted rep- compact engine but also one that is easier to S40ME-B MAN B&W engine designs. It sub- resentatives from the shipyard, ship owner overhaul since MAN Diesel has focused on sequently expanded the series in early 2007 and leading Classification Societies. making all components easily accessible for with the launch of the S50ME-B MAN B&W The MAN B&W 7K80ME-C9 engine devel- inspection and service. engine design, with the result that the entire ops 31,710 kW at 104 rpm and is destined The most important ME-C9 features are: ME-B programme now boasts a total output for a vessel operated by the A.P. Møller 20% higher power density, differentiated range from 2975 kW to 16,020 kW. Mærsk group that also includes Waste distances between cylinders to aid com- The economical ME-B design utilises a cam- Heat Recovery technology. The ME-C9 en- pactness and maintain overall weight, shaft-operated exhaust valve and an electron- gine enhances the green credentials of the integrated scavenge air receivers, cylinder ically controlled fuel-injection system. This same vessel that can also boast of a highly frame weight-optimised connection rods fuel injection makes the new ME-B engines efficient waste-heat recovery system. The and low-friction crosshead fuel system with particularly well-equipped to meet Tier-II engine is the first of four large-bore, Mk. 9 new servo pressure from 200 to 300 bars. emission requirements, and is an efficient engines, all displaying high power density, MAN Diesel’s first S40ME-B electronic en- way of managing current environmental, and due for production during 2009. gine has entered service. Yielding 6810 kW emission requirements. The four engines are based on the well- at 146 rpm and an mep of 21 bar, the new As with the larger MAN B&W ME-engines, proven technology of MAN Diesel’s me- engine was built by STX in Korea and is the Alpha Lubricator comes as standard with chanical MC and MC-C engine ranges. The one of six ordered by Intership Navigation all ME-B engines, ensuring a very low, cylin- ME-concept represents an upgrade of the of Cyprus to power a series of vessels. der lubricating-oil consumption. mechanical engines with electronic con- The ME-B engine is the prime mover aboard Based on well-proven diesel technology, the trols that provide improved, operational the “Pacific Adventure”, a multi-purpose ME-B series provides engines geared to mar- economy and flexibility, better manoeu- vessel built at HuangHai shipyard in China. ket requirements for: electronic fuel-injec- vrability and easier overhauls. The newbuilding recently passed its sea-tri- tion control reliability longer time between Søren Jensen, Vice President and Head of als successfully. According to MAN Diesel overhauls better vessel manoeuvrability very Research and Development, Marine Low- the market requirement for the lowest pos- low life-cycle costs. The ME-B range now of- Speed, MAN Diesel, commented: “The elec- sible propeller speed in relation to bore size fers 35-, 40-, 46-, 50- and 60-cm models in tronic, two-stroke ME-C range is among the has led to the new ME-B engine having a the smaller bore range, while MAN Diesel’s most popular available on today’s market. A stroke/bore ratio of 4.4. In turn, the new ME-C concept covers the medium- to large- major advantage is its ability to operate at engine has an increased maximum cylinder bore segment of the market. 42 Schiff & Hafen | Juni 2009 | Nr. 6