According to the company, 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.

By reducing the power losses which occur in the propeller’s slipstream with an optimised inflow, Wärtsilä EnergoFlow can achieve fuel savings of up to 10% and thereby lowers operating costs.

“As the result of increased propulsive efficiency and subsequent energy savings, Wärtsilä EnergoFlow reduces the emissions of ships. Investments in energy-efficient solutions ensure cost savings, compliance with maritime regulations and reduced environmental footprint,” says Tamara de Gruyter, Vice President, Propulsion System Services.

The impact of the Wärtsilä EnergoFlow on fuel consumption is the largest on bulk carriers, tankers, and other full form vessels. Explore more in the following video: