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Monday, March 1, 2021 

UK company Windship Technology says that the Wolfson Unit of the University of Southampton has carried out a detailed study into Windship's patented triple wing rig, followed by further CFD and performance optimisation by Cape Horn Engineering, which confirm potential savings of fuel and corresponding emissions at a conservative 30% per annum via the rigs alone.

The Wolfson Unit report summarised performance predictions in terms of thrust reductions or effective power reductions for a 125,000 dwt vessel with two different combinations of rig devices in accordance with Windship Technology’s whole ship True Zero Emission technology.

Simon Rogers, Windship's Technical Director, said: “We were delighted to receive this confirmation from the Wolfson Unit after extensive testing and we always knew that the rigs would be the bedrock from which the whole-ship design could be developed. What we now know for sure is that we have the best practical solution for commercial bulk carrier companies that wish to take their climate commitments seriously. The rigs are lower in height with vastly more thrust than single-masted technology. Combined with our whole ship design, Windship Technology can eliminate CO2, NOX, SOX and particulate matter to True Zero through incorporating large solar arrays, carbon capture, optimised hull shapes and specialised weather routing software into the overall design package.” 

The invention protected by these patents is the use of rigid aerofoil sails for bulk cargo vessels and large commercial oil tankers. The patents cover multiple pairs of leading and trailing aerofoil sections supported on a rotatable spar, with the angular position of the spar and angular position of the trailing sections adjusted as required. The 48m Windship Technology rig is stowable on deck to aid port navigation and cargo handling. Its composite structure is based on wind turbine technology and design, said to ensure reliability and offer a lifespan greater than 25 years.

Dr Ing Rodrigo Azcueta, MD Cape Horn Engineering, said: "We analysed a multitude of wing assembly shape configurations for Windship Technology in varying wind conditions. In total, almost 1000 high-fidelity CFD simulations were performed. These simulations were extremely valuable for improving the geometries of the wing assembly and through our detailed investigations at Cape Horn Engineering, a double-digit gain in aerodynamic performance was obtained. Windship Technology’s fixed wing sail systems are highly engineered and have been designed for optimal performance. We are extremely proud to be involved with the technical team on this project.”

Windship Technology is now starting to engage with interested parties from both the shipping industry and investment circles to promote and develop its True Zero Emission shipping concept.

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