DNV solutions

12 Jun 2013
The new bulbous bow on the 'Hyundai Brave' has produced 5% fuel savings

The new bulbous bow on the 'Hyundai Brave' has produced 5% fuel savings

By redesigning the bulbous bow of slow steaming container ships, operators can make fuel savings of 5% and above.

 Det Norske Veritas (DNV) has carried out a comprehensive study to develop a new bulbous bow shape optimised for expected trading conditions.

The first conversion was completed in March 2013 on Hyundai Merchant Marine’s (Hmm) Hyundai Brave, which had the capability of operating at 27 knots, but was only operating in the range of 15 to 18 knots.

“Existing ships have to compete with a new breed of efficient and flexible designs. One result of the high design speed of many existing container ships is that the bulb is highly tuned to reach the maximum speed,” said Jost Bergmann, business director, container ships, DNV.

Onboard measurements of the new operating profile, which makes the vessel five tonnes lighter, revealed that the US$680,000 modification reduced fuel consumption by almost 1,000 tonnes per year.

Elsewhere, DNV has developed a training simulator, Sesam SurveySimulator, to demonstrate thousands of potential vessel defects with real life accuracy.

The simulator uses virtual reality technology with photo quality texture to present complete visualisations of a tanker, bulk carrier, container ship or mobile offshore drilling unit, including engine room, cargo holds and decks.

DNV says the simulator allows users to examine and discuss particular features, such as the real time portrayal of coating degradation, to meet specific corporate goals and improve safety.

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