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2023-02-13 
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The Oceanbird concept shows that it is possible to reduce emissions from vessels by up to 90% if all emissions-influencing factors are aligned. These conclusions are based on data simulations as well as physical tests, for example wind tunnel test, model testing in open water and water tanks and Lidar measurements. The Oceanbird concept was developed in a three-year Swedish R&D project team consisting of Wallenius Marine, KTH Royal Institute of Technology and SSPA/RISE and supported by Swedish Transport Administration.
When the Oceanbird concept is brought into the reality of commercial logistics systems, there are several challenges to consider, such as inflexible arrival time at ports and the environmental impact of longer crossings in a slower speed would have on the size of the world fleet. Still, with these factors taking into consideration, we see a significant emission reduction on the first vessels from the Oceanbird concept.
With the concept as a solid foundation – Oceanbird is taking two tracks to achieve a shipping revolution.
The main energy force comes from wind, but the Oceanbird wing sails have more in common with airplane wings than traditional sails. Therefore, aerodynamics are important in developing the concept. The wing consists of a main sail and a flap, optimizing the aerodynamics forces.
When entering harbors, passing under bridges or if the surface area needs to be reduced due to strong winds, the smaller segment folds into the other before the whole wing sail is tilted.
Shipping is an energy-efficient way of transporting goods. Despite this, shipping needs to become more sustainable. Maritime transport emits around 940 million tonnes of CO2 annually and is responsible for about 3% of global greenhouse gas emissions, even more than airplanes. If the industry was a country, it would be the sixth biggest polluter, above Germany.
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