Abstract
A new plasma/catalyst continuously regenerative hybrid system (PCRHS) is introduced to reduce diesel particulate matter (DPM), NOx, CO, etc., contained in diesel exhaust gas. The catalyst temperature, plasma energy density, and exhaust gas characteristics were investigated with a passenger diesel car (2500cc) at the dynamometer test bed and chassis dynamometer with CVS-75 test mode. It was reported that the smoke removal efficiency was around 70% at the dynamometer test bed with 80 W energy consumption, and that PM removal efficiency was 68% at the chassis dynamometer. The NOx was reduced up to 20% according to the electrode types and temperature, respectively. The hybrid system test shows that DPM and CO were almost removed and NOx reduced to 30% simultaneously by the system. Considering these results, PCRHS could be a promising method to regenerate diesel particulate.
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