Propulsion – Page 81
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NewsOperators take servicing philosophies to extremes
In the critical area of turbocharger maintenance, equating quality with original equipment manufacturers doesn’t suit everyone, according to Wendy Laursen.
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NewsDual fuel gains credibility in the low speed market
Both major designers of large low speed two stroke marine engines have demonstrated their commitment to gas as an alternative fuel and have demonstrated dual-fuel technology applied to their engine designs, while, additionally, two Asian licensees are demonstrating their commitment to LNG ship power.
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NewsPutting solar technology into the hybrid mix
Wendy Laursen reminds us that there are solar-collecting sails on the horizon but it may be some time before they make their way into the emissions reduction plans of most shipowners.
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NewsGas turbines – poised for renewed interest?
The two major manufacturers of marine gas turbines – Rolls-Royce and GE Marine - look forward to a resurgence in interest in the face of stricter emissions regulations and the growing acceptability of gaseous fuels.
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NewsFerries lead, tugs may follow
Wendy Laursen outlines how commuter ferries with innovative power systems provide a testing ground for systems that could bring clean power to other vessel types, notably harbour tugs, thanks to battery technology.
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NewsField test success for cut-out procedure
MAN Diesel and Turbo has field tested the cut out of a TCA type turbocharger for improved slow steaming performance and concluded that the marginal fouling and oil leakages that occurred were not critical.
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Engineers meet deadline fixing bearing problem
Shanghai-headquartered Mariso demonstrated a quick response to owner’s needs when its repair team discovered a bearing problem during routine maintenance on a TC VTR 714 type turbocharger.
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NewsFirst dual-fuel newbuild with mechanical drive
An LNG carrier, soon to be delivered from the Meyer Werft yard in Germany, is notable for being the first newbuild gas-fuelled ship with mechanical drive to the propeller – previous such installations have all been part of a diesel-electric plant.
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NewsPerformance monitoring rapidly becomes a total solution
Just a few years ago, real-time system monitoring was only used by a few, technically advanced ship operators but, increasingly, intelligent data management systems are rapidly turning it into a practical and accessible tool for compliance and performance monitoring, writes Wendy Laursen.
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NewsMore gas engine options come to the market
Medium speed engine designers are looking harder still at gas fuelled options – gas-only or dual fuel - while China, rather than continuing to rely on European designs built under licence, is stepping up its domestic engine design programme, as David Tinsley reports.
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NewsShort payback claimed for integrated propulsion solution
Some things may sound too good to be true, and many are – but some have been proven to work, such as the Promas integrated propeller and rudder from Rolls-Royce.
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NewsNo-loss electric propulsion selected for gas-fuelled ships
Stadt of Norway reports that its patented Stadt Stascho no-loss drive system has gained a foothold in Korea with the country’s largest shipbuilder, Samsung, offering the system for its LNG-powered passenger ship designs.
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NewsSeawater scrubber qualifies as EPA 'emerging technology' to reduce particulate matter
Accreditation for Hamworthy Krystallon scrubbers on list of emerging technologies has followed the US EPA’s decision to accept exhaust gas cleaning systems as a viable means of reducing emissions.
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NewsTwo-strokes gear up for latest emission regulations
The two main low-speed engine designers continue to bring upgraded versions of their range to the marketplace.
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NewsMaersk opts for energy-saving propellers
During 2011, Spanish company Sistemar, part of the Cintranaval-Defcar group, concluded a trial in conjunction with A.P. Moeller – Maersk on Sistemar’s CLT propeller.
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News12-cylinder engine designed for high power and light weight
Italian engine manufacturer Seatek is probably the only diesel engine builder in the world that builds engines dedicated to the marine market, writes Dag Pike.
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NewsNew fixed podded drive
Gearbox manufacturer Reintjes is the latest company to enter the developing market for pod drives for smaller vessels, writes Dag Pike.
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NewsEuropeans supply propulsion for US Navy
Rolls-Royce and Converteam have recently secured multi-ship high-power propulsion contracts with Lockheed Martin and General Dynamics NASSCO, writes Henrik Segercrantz.
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NewsTurbo developments major on increased airflow and greater efficiency
Advances in turbocharger design allow smaller frame sizes, energy savings, higher efficiency, reduced emissions and cost savings, writes David Tinsley
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NewsSuccess for Swedish waterjets
Swedish waterjet maker MJP reports several recent significant military orders for its products.
