Ballast Water Treatment System
Saltwater Engineering assisted Damen Shipyard Den Helder to undertake the engineering for the conversion and placement of a ballast water treatment system (BWTS) on M/V Frisiana. The ballast water treatment system will be built in the vessel at two locations; one is in the engine room and the other is on the main deck just forward of the superstructure in a new to be designed deck house. The current layout of the engine room does not allow for a complete placement of the system, hence part of the new BWTS is located on the main deck.
Designing the deckhouse
The newly designed deckhouse is to accommodate several items related to the BWT system. One of the large items in the deckhouse is the chemical dosing unit, due to the size this needed to be located to the new deckhouse. The height of the deckhouse is limited by the container stacks/hatch-parking location above the hatch coamings; therefore, a cut-out is made in the HFO tank(s) below to accommodate the dosing unit. A new piping duct was created to route the main piping through the HFO tanks to reduce the impact on the engine room between deck installations. The deckhouse furthermore accommodates the filter unit, drain tank and metering.