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재생 과정 중 디젤입자상물질필터의 활성화 특성 및 온도거동에 관한 수치적 연구

Title
재생 과정 중 디젤입자상물질필터의 활성화 특성 및 온도거동에 관한 수치적 연구
Other Titles
Numerical Study on Light-Off Characteristics and Thermal Behavior of Diesel Particulate Filters During Regeneration
Author
김우승
Issue Date
2005-11
Publisher
한국자동차공학회
Citation
한국자동차공학회 2005년 추계학술대회논문집, v. 1, Page. 381 - 388
Abstract
The minimization of maximum DPF wall temperature and the fast Light-off during regeneration are the targets for the high durability of the DPF system and the high efficiency of regeneration. In order to predict transient thermal response of OPE one-channel numerical modeling has been adopted. The effect of the ratio of length to diameter (L/D), cell density, the amount of soot loading on temporal thermal response and regeneration characteristics has been numerically investigated under two dine rent running conditions: city driving mode and high space velocity mode. The results indicate that the maximum wall temperature of DPF increase with increasing 'L/D' in 'City driving mode'. For 'High space velocity mode', maximun wall temperature decreases with increasing 'L/D' in the range of 'L/D≥0.5'. The maximum temperature decreases with increasing cell density because heat conduction and heat capacity are increased. It is also found that the effect of amount of soot loading on light-off time is negligible.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00660008&language=ko_KRhttp://repository.hanyang.ac.kr/handle/20.500.11754/111996
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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