Wärtsilä EnergoFlow

In today’s increasingly competitive shipping environment, you need solutions that not only increase your efficiency, but that are also reliable and have a short payback period. Wärtsilä EnergoFlow is an innovative and cost-effective pre-swirl stator that increases fuel efficiency by up to 10% – without increasing maintenance needs.

Wärtsilä EnergoFlow creates optimal inflow for the propeller by guiding one side of the stern flow in the opposite direction to the propeller rotation, generating pre-swirl. The solution consists of multiple curved fins and a ring attached to the ship’s hull to prevent the power losses that typically occur in a propeller’s slipstream.

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Benefits

Improves fuel efficiency by up to 10%
Reduces NOx and CO2 emissions
Provides a quick return on investment – typically one to two years
Requires no additional maintenance as the solution has no moving parts

Technical info

The standard scope of supply for a Wärtsilä EnergoFlow delivery includes:

System design, supply and class certification
Redesign and modification of the existing propeller
Installation drawings and instructions
Design interface with the shipyard or ship designer
Supervision by Wärtsilä technicians during installation
Modification of the existing propeller if a new, optimized propeller is not included in the scope of supply

Optional scope of supply:

New propeller with design optimised for Wärtsilä EnergoFlow
Model EnergoFlow stator and/or model propeller for testing

Application

Applicable for vessels with fixed pitch propellers

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Wärtsilä EnergoFlow

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