2-Stroke and 4-Stroke – Page 59
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NewsMAN unveils latest cruise power technology
Henrik Segercrantz speaks to MAN Diesel & Turbo about the future of four-stroke propulsion, particularly concerning passenger vessels.
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NewsNo-loss electric drive for Korean ‘green ship’
David Tinsley describes an innovative, Norwegian-developed electric propulsion system ordered by Samsung Heavy Industries as part of a South Korean ‘green ship’ initiative.
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NewsConstant speed versus variable engine speed
A study by MAN Diesel & Turbo compares a diesel mechanical plant with CP propellers operating with constant engine speed with operations at variable engine speed on an offshore vessel. Henrik Segerkrantz explains.
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NewsLubrication dangers of slow steaming
According to Castrol Marine, it is vital to have a choice of different cylinder oils to suit the varying demands of slow steaming and fuel sulphur content.
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NewsAdvanced propeller designs suit slow revving engines
Advanced propeller designs such as the NPT, Kappel and CLT find their worth with ultra slow speed diesel engines, writes Wendy Laursen
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NewsEngine service organisation reports difficult cases
MAN PrimeServ has handled some demanding repair jobs on both two-stroke and four-stroke engines, as discovered on a recent visit by Henrik Segercrantz to MAN PrimeServ’s hub in Hamburg, Germany.
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NewsMAN looks forward to next-generation diesel-electric power
Propulsion requirements for diesel-electric offshore vessels with deeper-water capabilities have come under the microscope at MAN. Henrik Segercrantz reports
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NewsHigh charge air pressure for clean engines
ABB Turbocharging, of Switzerland, recently released for sales and production the first frame size in its A100-L series of high pressure turbochargers for low speed, two-stroke engines.
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NewsTransmissions for specialised applications
Transmission specialist ZF Marine says that it is involved in several specialist applications, supplying, in some cases, thrusters and propellers as well as reduction gearboxes.
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NewsEuropean hybrid tugs are coming to fruition
Tug owners worldwide have long recognised the need to meet future demands for more environmentally acceptable vessels, and Europe is joining the USA in making ‘green’ tug power a reality, writes Jack Gaston.
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NewsConceptual design avoids expensive delays
The importance of conceptual design and pre-engineering in the design of complex systems such as those for propulsion was recently reinforced for Alewijnse Marine Systems when the opening stages of a new contract took considerably longer than was originally anticipated.
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NewsInduction motors offer low noise signature
According to motor company Indar, up to now vessels complying with Silent class notation have had to use DC motors, but this has now changed.
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NewsMTU guards the Great Lakes
The Great Lakes that border the US northeast corner and Canada, as the world’s largest freshwater lakes holding 21% of the world’s surface fresh water, have a delicate ecological balance, which MTU is helping to safeguard.
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NewsDual fuel ticks all the boxes, says engine designer
Wärtsilä believes that the dual-fuel option for gas-fuelled ships offers economic benefits as well as practical and environmental advantages.
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NewsNeed for compact performance drives turbo technology
Turbocharger development for medium speed engines and high speed generators focuses on efficiency in line with emissions reductions requirements of the future, by Wendy Laursen.
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NewsGreening the low speed fleet
The Motorship recently visited MAN Diesel’s two-stroke headquarters in Copenhagen, where we learned about the company’s latest moves to keep ahead of the game in respect of emissions reduction, particularly with respect to the EEDI.
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NewsImproved marine transmission launched
ZF Marine says that its new ZF 5000 marine transmission family is well positioned to address current market requirements incorporating the latest design and technological advances in a wide range of models.
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Effective oil condition monitoring
According to Intertek UK, the cost and effect of machinery breakdown in a vessel can be severe; from the cost of replacement with new equipment to expensive downtime.
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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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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.
