Low Emission Study

During 2009, the partners of Green Ship of the Future decided to work together on a concept study of so-called ‘Low emission ships’. The purpose of the study was to investigate the possible overall emission reductions when the various available technologies from the Green Ship of the Future project were implemented already during the design phase of a new ship.
 

Read more about the project by clicking here...

The different technologies used is shown below together with the main conclusions in short.

1. Advanced rudder and propeller system 2. Speed Nozzle 3. Exhaust gas scrubber system 4. LNG auxiliary engines 5. Hull Paint 6. Waste Heat Recovery system (WHR) 7. Water In Fuel system (WIF) 8. Exhaust Gas Recirculation system (EGR) 9. Pump and cooling water optimisation Clik on the ship to read more about the different technologies...

Conclusion in short (Read the conclusion in full by clicking here...)
 

• With respect to NO_x and SO_x we have reached our goals

• Reducing NOx and SO_x will in some case cost increased CO₂ emission

• With respect to CO₂ the study shows that we still need to work with technical solutions and operation to meet the goal of a 30 % reduction

• Further reduction in CO₂ must be obtained through continued efforts to reduce vessel resistance, optimised operation (slow steaming, weather routing etc), more effective propulsion systems, more fuel efficient engines, alternative fuel (LNG, Biofuel etc) and addition of alternative green means of propulsion (fuel cells, wind, solar etc)

• Further reductions in CO₂ will also reduce NO_x and SO_x emissions

• Challenges with retrofitting