Pilot-Scale Combined Reduction of Accumulated Particulate Matter and NO x Using Nonthermal Plasma for Marine Diesel Engine
| Autor: | Takuya Kuwahara, Masaaki Okubo, Keiichiro Yoshida, Kazutoshi Sato, Tomoyuki Kuroki, Kenichi Hanamoto |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Ozone
Diesel particulate filter Materials science Analytical chemistry 02 engineering and technology 010501 environmental sciences Particulates Nonthermal plasma 021001 nanoscience & nanotechnology Diesel engine 01 natural sciences Industrial and Manufacturing Engineering chemistry.chemical_compound Adsorption Electricity generation chemistry Control and Systems Engineering Desorption Electrical and Electronic Engineering 0210 nano-technology 0105 earth and related environmental sciences |
| Zdroj: | IEEE Transactions on Industry Applications. 56:1804-1814 |
| ISSN: | 1939-9367 0093-9994 |
| Popis: | An effective NO x -reduction aftertreatment system for a marine diesel engine that employs combined nonthermal plasma (NTP) and adsorption is investigated. The system can also treat particulate matter (PM) that employs a diesel particulate filter (DPF) and its regeneration by NTP-induced ozone. The effect of the combined reduction of accumulated PM and NO x is studied. The marine diesel engine of interest provides an output power of 1 MW at 100% of the engine load. The NO x reduction is composed of repeated adsorption and desorption flow processes using NTP combined with NO x adsorbents. With a view toward practical use, experiments on a higher number of cycles are carried out. The amount of adsorbents is 105 kg, which is greater than that in the authors’ previous study. As a result, NO x reduction efficiency by NTP is higher than in the previous study and is greater at higher amounts of adsorbents owing to higher NO x desorption. Furthermore, DPF regeneration with plasma-induced O3 injection is achieved simultaneously. This aftertreatment system demonstrates an excellent energy efficiency of 114 g(NO2)/kWh. The present aftertreatment can generate a synergistic effect of PM and NO x reduction. |
| Databáze: | OpenAIRE |
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