디젤자동차용 촉매식 입자상물질 여과장치의 성능 연구 = Performance of Catalyzed Diesel Particulate Filter for Diesel Vehicles

다국어 초록 (Multilingual Abstract)

Diesel particulate matter is one of the major harmful emissions under strict regulations. The exhaust after-treatment devices are added to the diesel engines as stricter regulations are introduced worldwide. In this study diesel particulate filters(DPF) were installed in the exhaust system of a common-rail diesel engine, and their PM-reducing performance was investigated under the steady state conditions. The PM emission levels with a plain DPF or catalyzed DPF (CDPF) were measured using a scanning mobility particle sizer and the conventional gravimetric method. It was observed that the size distribution of engine-out particles could be either mono-modal or bi-modal. Number of particles with diameter over 70㎚ decreased during passing through the DPF or CDPF in D-13 mode engine tests. But particles with diameter under 50㎚ increased inside the DPF or CDPF in certain parts of the engine test cycle. More than 90% by weight of PM contained in the engine exhaust disappeared after passing through the DPF or CDPF.

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 실험 장치 및 방법
  
• 3. 실험 결과 및 고찰
  
• 4. 결론
  
• 후기
  
• References