Propulsion – Page 73
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Twin fins add efficiency benefits to diesel electric installations
Caterpillar recently formally launched its Cat Propulsion Twin Fin system, designed to save fuel and emissions for diesel-electric installations while improving overall vessel performance.
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Engine monitoring for Maersk supply ship
A Maersk AHTS vessel has been fitted with the Royston Enginei system to monitor its fuel consumption, which will enable both crew onboard and technical staff onshore to understand how the ship is being worked, hopefully leading to lower fuel costs and reduced environmental impact.
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Boiler adds energy saving benefits to EGR
Alfa Laval and MAN Diesel & Turbo have been jointly developing a system that adds waste heat recovery to exhaust gas recirculation, effectively permitting fuel saving and TierIII NOx compliance at the same time – previously, reducing NOx meant a fuel consumption penalty.
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Failsafe sealing solutions boost performance
A growing range of sealing solutions aim to improve safety and reduce the risks of oily emissions, by Wendy Laursen
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Piston rod sealing systems to combat high-BN cylinder oil side effects
Engine builders and oil companies are agreed that in order to avoid the effects of cold corrosion when slow steaming with new-generation long-stroke low speed engines, a high base number cylinder oil is needed – Ernie Terry of UK company Marine Sealing Services looks at overcoming the possible problems.
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Monitoring for safety with bio-fuels
According to Patrice Flot and Alain Meslati of diesel control and instrumentation company CMR Group, various challenges in the marine industry are leading to the greater use of bio-fuels in the form of bio-diesels and an increase in the quantity of biodiesel blended into conventional distillate fuels.
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Electric offshore drives
Ingeteam of Spain says that for the past two years, under a framework agreement with Ulstein, its Ingedrive frequency converters have been integrated into Ulstein Power & Control offshore vessel projects.
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NES adds energy storage to Quadro drives
Norwegian Electric Systems (NES), the Bergen-based integrator of marine and offshore electric propulsion systems, has launched two new hybrid systems to the market.
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The new IGF Code could accelerate the uptake of fuel cells
The industry is now well placed to adopt fuel cell technologies, but it will take time, writes Wendy Laursen
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Organic Rankine Cycle heat recovery technology ready for ships
A new waste heat recovery system from French company Enertime is said to promise flexibility for lower temperature heat sources, writes Wendy Laursen
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Mitsubishi raises its game with new two-stroke generation
Mitsubishi is sometimes overlooked in the area of large two-stroke engine design and development, but the Japanese company is keeping up with current trends by introducing a super-long-stroke family in keeping with current operational practices, as discovered by David Tinsley.
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MAN chosen for cruise power and hybrid installation
MAN Diesel & Turbo says that its large four-stroke engines are continuing to be a popular choice for newbuild cruise ships.
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New fuel-flexible dual fuel and small-bore four-strokes launched
Wartsila has added a new dual fuel engine, claimed to offer lowest fuel consumption, high output and attractive lifecycle costs, to its portfolio which was recently enhanced by two smaller four-strokes aimed principally at the genset market.
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MTU launches new marine genset engine
Rolls-Royce Power Systems – the brand which includes MTU among others – is launching a new marine genset, based on the six-cylinder series 1600 inline diesel engine.
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Schottel scores in Panama
Schottel of Germany says that its propulsion systems are proving a popular choice for the new generation of post-Panamax era tugs, as well as a local ferry.
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Support offered for all engine types
UK company Royston Ltd says that its engineers, based in two centres in diametrically opposite parts of the world, can be called upon to support any type or age of marine diesel engine, wherever it might be.
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EcoCam continues MAN diesel fuel optimisation
MAN Diesel & Turbo has announced a device known as EcoCam, intended for retrofitting to its mechanical two-stroke engines with single turbochargers.
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Diesel is far from dead
Although alternatives are looking increasingly attractive, Lloyd’s Register believes that the trusted traditional two-stroke diesel engine will continue to be the first choice in large ship propulsion for many years to come.
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Cost-effective turbocharger modification for fuel saving and emission control
Dr Anatoly Mezheritsky, president of Canadian engineering company MA TurboEngine, looks at alterations to turbocharger configuration for large marine engines employing slow steaming and other part-load operations to cut fuel costs and reduce exhaust emissions.
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A step closer to hybrid power for large ships
Eco Marine Power (EMP) of Japan says that its rigid sail technology for ships, known as EnergySail, has successfully concluded function testing at the Aquarius Innovation Lab in Osaka, supported by JSMEA (Japan Ship Machinery & Equipment Association).