Performance of a Wet Electrostatic Precipitator in Marine Applications
Järvinen, Anssi; Lehtoranta, Kati; Aakko-Saksa, Päivi; Karppanen, Mikko; Murtonen, Timo; Martikainen, Jarno; Kuusisto, Jarmo; Nyyssönen, Sami; Koponen, Päivi; Piimäkorpi, Pekka; Friman, Eero; Orasuo, Varpu; Rintanen, Jaakko; Jokiluoma, Juha; Kuittinen, Niina; Rönkkö, Topi (2023-02)
Järvinen, Anssi
Lehtoranta, Kati
Aakko-Saksa, Päivi
Karppanen, Mikko
Murtonen, Timo
Martikainen, Jarno
Kuusisto, Jarmo
Nyyssönen, Sami
Koponen, Päivi
Piimäkorpi, Pekka
Friman, Eero
Orasuo, Varpu
Rintanen, Jaakko
Jokiluoma, Juha
Kuittinen, Niina
Rönkkö, Topi
02 / 2023
393
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202303273197
https://urn.fi/URN:NBN:fi:tuni-202303273197
Kuvaus
Peer reviewed
Tiivistelmä
Emissions of marine traffic can be lowered by switching to less polluting fuels or by investing in exhaust aftertreatment. Electrostatic precipitation is a widely used method for particle removal but it is not currently used in combination with marine engines. This study presents the particle filtration characteristics of an emission reduction system designed for marine applications and consisting of a scrubber and a Wet Electrostatic Precipitator (WESP) in series. Partial flow of exhaust from a 1.6 MW marine engine, operated with light and heavy fuel oil, was led to the system. Particle concentrations were measured before the system, after the scrubber and after the WESP. Particle removal characteristics were determined for different engine loads. The scrubber alone removed 15–55% of non-volatile particle number, 30–40% of particle mass and 30–40% of black carbon mass depending on engine load, when HFO fuel was used. By studying particle size distributions, scrubber was found also to generate particles seen as an additional mode in 20–40 nm size range. The system combining the scrubber and WESP removed over 98.5% of particles in number, mass and black carbon metrics when HFO fuel was used. With MDO fuel, 96.5% of PN and 99% of black carbon were removed.
Kokoelmat
- TUNICRIS-julkaisut [16929]