Taking inspiration from a whale’s tail, ABB introduced a new propulsion system concept for the marine industry, with plans to roll out the first prototype in 2025.
The new propulsion concept, which mimics the movements of a whale tail, features a main electric motor that powers a large wheel rotating at a moderate 30-80 rounds per minute. Vertical blades, each controlled by an individual motor and control system, extend from the wheel. The combined motion of the wheel and blades generates propulsion and steering forces simultaneously, enabling what ABB described as ground-breaking operational efficiency and precision for ships.
The Swiss technology group named the innovative concept ABB Dynafin, which it said took over a decade of research, development, and testing. It will initially come in the power range of 1–4 MW per unit, for medium-sized and smaller vessels, including ropax ferries, offshore wind support vessels, and yachts, with reduced vibrations and noise levels and superior maneuverability, and positioning performance.
Citing a study by OSK-ShipTech, ABB said the technology has verified savings in propulsion energy consumption of up to 22% compared to conventional shaftline configuration. This can deliver significant savings in fuel consumption and help to avoid emissions.
Tags: ABB, Blades, Marine Industry, Marine Propulsion
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