New collaboration focused on hull design to maximize wind assisted propulsion Ship’s crew

Naval architects Deltamarin and marine engineering consultancy BAR Technologies have teamed up again to revolutionize wind propulsion in the maritime industry.

The latest collaboration focuses on the design of a new vessel, called Aframax/LRII, with the aim of optimizing the hull shape using wind power to improve fuel efficiency.

The announcement follows a previous project to install Bar Technologies’ WindWings sails for the first time on the bulk carrier ocean boxes, which was recently nominated at Nor-Shipping for the prestigious Next Generation Ship Award. By integrating WindWings into the ocean boxesWhen launched this year, the ship is expected to reduce fuel burn by about 1.5 tons per wing per day.

While significant progress has been made in the development of wind propulsion systems above deck, Deltamarin and BAR Technologies recognize that there is untapped potential below the waterline as well. To maximize the efficiency of wind-assisted propulsion, they aim to improve hull shapes specifically tailored for wind power.

Illustration courtesy of Deltamarin/BAR Technologies

Preliminary estimates from BAR Technologies and Deltamarin suggest that the new Aframax/LRII fuselage design combined with four WindWings could potentially save up to 10 tonnes of fuel per day on a round trip North American to Rotterdam flight.

“Wind power is a free resource and it is our responsibility as innovators to find ways to replace fossil fuels with wind power,” said John Cooper, CEO of BAR Technologies. “Working with leading shipyards on the WindWings retrofit has been an honor and we are particularly pleased to be working with Deltamarin, the leading naval architect in the design of large vessels. The Aframax/LRII is just the first of many exciting announcements to come.”

The collaboration is expected to pave the way for a range of ship designs specifically tailored for wind propulsion.

“The opportunities for the future of wind energy are enormous,” said Esa Jokioinen, director of sales and marketing at Deltamarin. “As we are familiar with BAR Technologies’ expert innovations in the field of wind propulsion, we are excited to be collaborating on what both companies see as the next important step for wind-assisted voyages: hull optimization. So far we have made good progress harnessing wind energy with sails but we continue to see performance gains and with this hull design we have seen a 15% improvement over our current fleet.”

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