With the increase of the amount of ships' exhaust gases emitted worldwide, the International Maritime Organization had to issue restricted maritime legislations to reduce the impacts that arising from the emissions. As a result of that the ship operators have to face the technical and economic challenges to reduce the ship emission. This research addresses the one strategy that can be used to reduce those emissions, especially nitrogen dioxide.
The Selective Catalytic reduction method is a special method that can be used to reduce the ship emission apart from using conventional fuels. The design of the control system consists of mechanical and electronic systems. Application of this method depends on the ship type and working area.
The results obtained are very satisfactory from the point of view of environment and economic issue. Further improvements of the design can use for the various types of ships and transform it into commercial usage.