World News
DNV GL Launches Fuel Saving Hull, Propeller Performance Monitor
Classification society DNV GL Wednesday announced the launch a new fuel saving analytics module as part of its ECO Insight offering.
The module uses computational fluid dynamics (CFD) calculation methodologies to measure the effect of propeller and hull fouling on sailing performance.
According to DNV GL the CFD calculations take account of factors such as speed, draft, trim, weather and other operating conditions that create a gap between a ship's theoretical sailing speed and actual speeds achieved, more accurately than existing proximate or experimental methods.
"Experts suggest that, as a result of hull fouling, the world fleet could be sailing with approximately 30 per cent added resistance and consequently significantly higher levels of fuel consumption," said DNV GL.
Although there is a consensus among shippers that hull and propeller maintenance is beneficial for fuel consumption, said DNV GL, the question of when and how the procedure should be carried out has not yet been addressed systematically.
A key benefit of the CFD module is that it relies on existing data rather than adding to a ship's data collection burden, the society added.
"We use data that shipping companies are already collecting," said Torsten Büssow, DNV GL's Head of Fleet Performance Management.
"Our CFD capabilities…allow us to very accurately normalize vessel specific power demand under each reported condition."
Last month, DNV GL announced it would class the world's largest container ship, MSC Oscar.
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| VLSFO | MGO | |||
|---|---|---|---|---|
| $/mt | +/- | $/mt | +/- | |
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| Houston | 636.50 | 8.00 | 807.50 | 5.00 |
| Fujairah | 649.50 | 4.00 | 888.50 | 11.50 |
| Global 20 Ports Average | 665.50 | 6.50 | 870.50 | 14.50 |
| Global 4 Ports Average | 635.50 | 3.50 | 810.00 | 17.50 |
| Global Average Bunker Price | 725.00 | 2.50 | 925.50 | 8.00 |
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