Technology | Benefits | Limitations | References |
DWI | · Potential reduction of NOx by an amount of 60% · Can be applied for Medium Speed Marine Diesel Engine | · Increase the fuel consumption by 2% - 3% | [23] |
Miller Cycle | · Increase efficiency of the engine · Potential reduction of NOx by an amount of 40% - 60% | · Requires high maintenance · High cost | [24] [25] [26] |
Scavenge Air Temperature | · Potential reduction of NOx by an amount of 60% · Reduce number and size of exhausts ports | · Cylinder head complex · Additional maintenance is required | [27] |
Exhaust Gas Recirculation (EGR) | · Allows NOx emission reductions by 30% · Low operating cost | · Cannot be employed at high loads because it would reduce peak power output · Increase the production of PM | [28] [29] |