The test campaign achieved the following results:
1. The combined scrubber and wet ESP system achieved removal efficiencies of up to 96% for PM and 91% for BC when the engine was operated on Heavy Fuel Oil (HFO) with a load ranging from 25% to 100%.
2. The combined scrubber and wet ESP system achieved removal efficiencies of up to 98% for PM and 96% for BC when the engine was operated on Diesel Oil (DO) with a load ranging from 25% to 100%.
3. The wash water cleaning system demonstrated an average cleaning efficiency of approximately 99%, making it highly effective.
Overall, the combined scrubber and wet ESP system, along with the highly efficient wash water cleaning system, provides a robust and effective method for reducing PM and BC emissions from marine combustion engines. This system shows great potential for improving air quality and complying with stricter environmental regulations in the maritime industry.