Wartsila Introduces an Innovative Pre-swirl Stator to Improve Fuel Efficiency


Fuel & Retailing - Nov 7, 2017

The new Wärtsilä EnergoFlow is an energy saving solution that will return ship operators’ investment in less than two years. By reducing the power losses which occur in the propeller’s slipstream with an optimised inflow, Wärtsilä’s solution improves fuel efficiency by up to 10 percent.

The technology group Wärtsilä launches the newest solution in its propulsion efficiency portfolio during November. The product will be introduced at the Europort event in Rotterdam, the Netherlands, on Tuesday, November 7. The next-generation pre-swirl stator is the result of years of research and experimentation with hydrodynamics, energy-saving propulsion efficiency concepts and pre-swirl models by Wärtsilä’s R&D experts.


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The Wärtsilä EnergoFlow’s design guides one side of the stern flow in the opposite direction of the propeller rotation. The stator’s multiple fins, which are attached to the ship's hull, optimise the flow into the propeller and prevent power losses. The curved fins minimise the viscous resistance while the ring connecting the fins at their tips decreases the peak stress of each fin.

Source : Wartsila

Published on Global Energy World: Nov 7, 2017

 
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