Wärtsilä Hybrid Scrubber System
Hybrid solutions with the flexibility to operate in both open and closed loop
The hybrid approach enables operation in closed loop mode when required, for instance whilst in port and during maneuvering using NaOH as a buffer. When at sea the switch can be made to open loop using only seawater.
Improved PM capture
We offer systematic adjustments to improve the capture of PM from the exhaust.
Back pressure reduction
Should the installation of an exhaust gas cleaning system cause a higher back pressure than that recommended by engine manufacturers, a fan can be installed on the cold side to reduce pressure drop through the system
Re-oxygenation of the system
Air is added to the discharge water to supplement the oxygen levels in the discharge water. In sensitive water areas, such as Alaska, this is often a requirement.
The exhaust is saturated with water, and in cold areas this can create a white plume. The Wärtsilä de-plume system provides hot dry air to eliminate this effect.
The agreement made with Containerships Ltd Oy covers the retrofitting of a Wärtsilä fresh water scrubber system in 2011 for the company’s Containership VII vessel, which is equipped with a Wärtsilä 7L64 main engine. »