Propulsion – Page 81

  • The MAN B&W 4T50ME-X test engine (upper part) at MAN Diesel & Turbo’s Diesel research centre in Copenhagen
    News

    Emulsified light distillate fuel for low-NOx large engines

    2011-10-31T23:45:00Z

    Anders Andreasen, senior research engineer at MAN Diesel & Turbo in Denmark, describes how emulsifier development enables water-emulsified light distillate fuel for reducing nitrous oxide emissions in large marine engines.

  • The Wartsila RT-flex 82 has been selected to power 12 new Valemax bulk carriers to be built at Jiangsu Rongsheng Heavy Industries
    News

    Mix of marques for bulker record-breakers

    2011-10-31T23:45:00Z

    An emergent fleet of ore carriers of record-breaking capacity provides references for electronically-controlled ‘cathedral’ engine designs originating from the two main fountainheads of two-stroke diesel technology in Europe, writes David Tinsley.

  • MAN's S80ME-C9 (illustrated) and S90ME-C8/9 super long-stroke types are finding increasing favour for container vessels by allowing larger propeller diameters to be used
    News

    Changes of course in boxship power

    2011-10-31T23:45:00Z

    Efficiency optimisation trends in the containership sector, prompting a shift to lower vessel speeds, have fostered new solutions to powering arrangements and hull design based on the use of larger propellers and machinery with slower running speeds, writes David Tinsley.

  • The new-generation Wärtsilä 620mm-bore engine, in seven-cylinder configuration
    News

    Wärtsilä move widens choice in mid-size engine market

    2011-10-31T23:45:00Z

    Through a major initiative to swell its range of low-speed, two-stroke marine diesels, Wärtsilä is set to provide owners, shipyards and designers with greater choice in the mid-size engine category, writes David Tinsley.

  • The Italian Coast Guard’s deep-sea supply vessel will be equipped with a ZF 9300 PTI hybrid gearbox
    News

    ZF on a roll with several large contracts

    2011-10-30T23:00:00Z

    Friedrichshafen-based ZF Marine, in conjunction with Dutch company HRP (now ZF Marine Krimpen) has secured a contract with Aberdeen-based global shipping and energy firm, the Craig Group, to supply retractable azimuth thrusters for four 50m stand-by type vessels.

  • Installing Thordon's seawater lubricated propeller shaft bearing replacing metal bearing and oil
    News

    Avoiding the slippery slope to lubricant pollution

    2011-10-30T23:00:00Z

    Environmental lobby groups are pressing the shipping industry, and its regulators, to move away from traditional oil-based lubricants which are causing significant harm to the global marine environment.

  • Diagram showing operation of the Cyclone Power engine
    News

    The return of coal-fired steam ship propulsion

    2011-10-27T23:15:00Z

    A new type of steam engine has been developed in the USA that could see coal - or oil - fired steam power returning to the sea, writes Dag Pike.

  • MTU’s 16V 2000 M92 engine is rated at 2,186bhp
    News

    High speed engines bring emissions and cost benefits

    2011-09-30T23:00:00Z

    Demands for higher efficiency, lower emissions and fuel restrictions are prompting designers to look at high speed diesel-based prime mover options, by Dag Pike.

  • The Wärtsilä 50DF engine
    News

    Dual-fuel technology meets owners’ needs

    2011-08-31T23:16:00Z

    Concerns over the extent and pace at which LNG will become obtainable as a marine fuel, and shortcomings in the international bunkering network, make dual-fuel (DF) machinery rather than pure gas engines the favoured choice for many owners looking to use natural gas fuel, writes David Tinsley.

  • MAN’s LPG-fuelled version of its ME-GI engine
    News

    LPG options for two-stroke engines

    2011-08-29T23:02:00Z

    All electronically-controlled ME engines in MAN’s two-stroke range are available as ME-GI dual-fuel versions, incorporating high pressure gas injection arrangements, writes David Tinsley.

  • Rolls-Royce has landed a clutch of contracts in the Norwegian market for its newly-developed Bergen C26:33 gas engine
    News

    Norway encourages gas propulsion solutions

    2011-08-29T23:02:00Z

    Norway’s environmental strategy has provided a fillip to the uptake of gas-fuelled machinery in the marine sector, writes David Tinsley.

  • News

    Korean engine builder consolidates gas experience

    2011-08-28T23:02:00Z

    Korea’s increasing endeavours in the field of engine technology, complementing its considerable stance as a producer of engines for the marine and power generation markets, are encapsulated in the rapid extension of the HiMSEN portfolio from Hyundai Heavy Industries’ Engine & Machinery Division(HHI-EMD), writes David Tinsley.

  • ‘Eiksund’ leaves the quay in Molde
    News

    New-generation thrusters put to work on Norwegian ferry

    2011-08-28T23:02:00Z

    Thruster manufacturer Brunvoll has released details of the first propulsion application for its azimuth rim driven thrusters, on a Norwegian ferry operated by Fjord1 MRF.

  • Oil and filter change intervals can be extended by using high-grade oils, centrifugal oil filters and doing regular oil analysis (Picture: MTU)
    News

    Regular maintenance is key to more uptime and lower costs

    2011-06-29T22:45:00Z

    Bill Mossey, Corporate Manager Pacific Power Products, MTU Detroit Diesel, outlines the company’s approach to preventive maintenance of high speed diesel engines.

  • EGR tests were carried out on a single-cylinder test engine 1L 32/44 CR
    News

    Sailing towards IMO Tier 3

    2011-05-31T23:00:00Z

    In order to meet future emission limits for marine engines with respect to nitrogen oxides (NOx) and sulphur oxides (SOx), engine manufacturers have been developing a number of solutions. This paper from MAN Diesel sets out the options for medium-speed diesel engines.

  • ABB A100-L turbocharger
    News

    Turbochargers for optimised performance

    2011-05-25T23:45:00Z

    The latest technology from turbochargers manufacturers is timed to meet a new era of low engine-emissions and low fuel-consumption. Mark Langdon reviews the options.

  • Rendering of SEAS Cummins-powered support craft (picture: Pirou/SEAS)
    News

    Cummins power remains popular in SE Asia

    2011-05-18T16:55:00Z

    The French have long been noted for their marriage of art and design, writes Alan Haig-Brown. The latest design for a fast support intervention vessel (FSIV) demonstrates this once again.

  • The Cummins-powered Suda 300-L3 liftboat design
    News

    Cummins power for smaller US liftboats

    2011-05-18T16:54:00Z

    Having recently delivered a lift boat with massive 97m legs, naval architect firm A. K. Suda is currently overseeing the construction of two of its latest designs, writes Alan Haig-Brown.

  • The Revolvo SRB split roller bearing is being made available for marine propulsion applications
    News

    Split bearings prevent ship layovers

    2011-04-30T22:45:00Z

    UK company Revolvo says that its split roller bearings can prevent unplanned layovers resulting from bearing failures in marine shaft propulsion systems.

  • Boiler servicing is booming, according to Wärtsilä in Dubai
    News

    Wärtsilä capitalises on buoyant Mid East market

    2011-04-30T22:00:00Z

    Boiler servicing and modification business is booming in the Gulf, according to Wärtsilä Dubai boss, Ad J.W. Bertens.