Numerical Prediction of Cold Plasma Electrostatic Precipitation in Corrugated Marine Exhaust Ducts

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This research aims to optimize electrostatic collectors in marine diesel engines to enhance the removal of sub-micron particulate matter.
Developed a two-dimensional axisymmetric model using COMSOL Multiphysics 6.4.
Integrated turbulent flow (k–ε), electrostatics, ion charge transport, and particle tracing.
Assessed the efficiency of smooth vs. corrugated duct geometries.
The theoretical Deutsch–Anderson efficiency was 61.1% at an inlet velocity of 0.5 m/s for both geometries.
Corrugated ducts reduced wall shear stress by 7.7 to 13.5 times at flow velocities of 0.3–0.8 m/s.
Pressure drop was less than 6% of the localized corona power, indicating high efficiency.

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Investigates cold plasma's impact on reducing particulate matter in marine exhaust systems, suggesting effective aftertreatment solutions.

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Šabanovič et al. (2026) studied this question.

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