Ship Power - Emissions reduction

Emissions to the air

Most harbours in the world are located close to densely populated areas, and for this reason the demand for no visible smoke under any circumstances has become increasingly important in recent years. Common-rail injection technology now makes it possible to provide smokeless engines. Wärtsilä has the widest range of products available with common-rail technology for heavy fuel operation.

The focus on reducing NOx emissions continues to gain importance within the marine business. Existing Wärtsilä and Sulzer engines can also be modified with NOx reduction technologies (common-rail injection, WETPAC H, WETPAC DWI and SCR).

Emissions to water

Wärtsilä’s CoastGuard EnviroSeal, and Airguard 3AS environmental sterntube sealing system, offer environmentally sound alternatives that prevent the spilling of lube oil from the stern shaft into the sea. They are available for use in new tonnage and for retrofitting to existing vessels. The sealing systems prevent both the leakage of bearing oil into the seaway, and the ingress of water into the bearing system. They ensure continuous operation between planned maintenance periods, with no unplanned dry dockings for emergency repairs.

Solutions for improving propulsion efficiency