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ClassNK begins ship efficiency project

ClassNK reports that it has started full scale ship tests to develop a feedback scheme on the impact of ship design on vessel performance in actual sea conditions.

The joint research programme will be carried out in collaboration with Imabari Shipbuilding and Sayonas Shipbuilding.

During this project, an energy saving operation support system called ClassNK-NAPA GREEN, developed by ClassNK and Napa, will be installed on the ships constructed by each of the above mentioned yards. The partners will then attempt to verify the effectiveness of the energy saving system in operation.

ClassNK says that the objective is to contribute to total optimisation of performance with regard to fuel efficiency, both in calm seas and actual sea conditions, with the feedback obtained from gathering and analysing the information obtained from the test ships.

This will be used to measure the relationship between draft, trim, main engine output, vessel speed, marine weather information, and other parameters.

Shipyards can confirm ships’ performance in calm seas during the sea trials of newly built ships, but it remains difficult to correctly understand performance in real sea and draft conditions after entry into service, ClassNK says.

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