WP3 Exhaust Gas Cleaning

The purpose of the WP is to identify and evaluate existing methods and methods under development for exhaust gas cleaning especially with regards to NOx, SOx, VOC (Volatile Organic Compounds), PM (Particulate Matter) and methane slip (relevant for LNG operation).

The methods will be evaluated to determine optimum solutions for the proposed roro ship as well as to describe important factors to consider for application to other ship types. Requirements for exhaust gas cleaning for the most promising fuels identified in WP2 will also be discussed. A comparison of emission levels and efficiencies will be carried out so that the “alternative fuels” identified in WP2 can be compared with conventional fuels that are treated with state of the art and promising future emission control technologies. The goal is to identify the most promising combinations of fuels and emissions controls.

- Internal engine methods as well as external methods to be studied

- Possible interactive relations between the methods to be observed

Areas for future developments will be identified and described. Ways to achieve this will be suggested.

The work package will also evaluate the methods available for cleaning exhaust gas with respect to:

- Impact on engine power and energy requirements (should have a low effect on engine power and thus should not create the need for overall increased CO2 emissions for transport work performed);

- Size and weight of required equipment, and effect on cargo capacity and fuel use

- Other environmental impacts such as production and disposal of residuals effluent during the operational life of the equipment;

- Cost-benefit (approximate) of each of the identified methods and any combinations of methods that may be identified.

The goal is to identify solutions that lead to both a clean and energy efficient marine power train. A complete system will be developed with the target to reduce 99% of the NOx, SOx and PM emissions from a typical RoPax vessel. Cost, weight and possible adverse impact on deadweight, stability and fuel consumption will be investigated.