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INCORPORATING

DFDS TESTS 'SAIL IN A BOX' GREEN SHIPPING SOLUTION

Monday, November 18, 2019  (Comments: 1)

DFDS has installed a metal sail in a box on its general cargo vessel 'Lysbris Seaways', hoping this could be a simple solution to save fuel and cut emissions in shipping by utilising the power of the wind.

The prototype system from Dutch company Econowind is a foldable aluminium twin-sail concept that sits on the deck of a vessel. It comes in a 40ft container, and comprises two metallic 10m foils, or wings, which fold out with the press of a button. The design and software let the wings move to optimally catch the wind and help propel the vessel forward.

Poul Woodall, Director of Environment, and Vidar Karlsen, MD in Norway, signed the agreement in September for the collaboration with Econowind and Green Shipping Programme (Grønt Skipsfartsprogram or GSP), a Norwegian programme for research into, and development of, green shipping solutions. GSP delivers a theoretical modelling of historic weather data, consumption, routes and more that we use for testing.

Karlsen said: “Lysbris Seaways is perfect for testing such a concept. In theory it looks like a good idea, but we need to see if the estimated fuel savings are realistic for this type of vessel. We are going to measure fuel consumption with the sail and get a picture of the efficiency gained over time compared to the regular numbers. The finalised design works automatically, meaning you can open the container from the bridge and open the sail, but for the prototype it’s a bit more hands-on with manual controls and a service engineer present to operate the system. After a successful installation we are now looking forward to seeing the outcome of the two months of testing.”

Sofie Hebeltoft, DFDS Head of CSR, said: “With projects like this we take responsibility for developing new energy sources and methods of propulsion that can take us towards cleaner ships and eventually zero emission shipping. We are therefore extremely grateful for initiatives such as this taken by Vidar and his team.”

Reader Comments (1)

How are the sails trimmed to the apparent wind?And how is an optimal angle Alpha maintained with gusting and veering winds? What wouild be the frequency of angle Alpha trim? Thank you Robert Vincent

By Robert Vincent on Monday, November 25, 2019

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