디젤기관차 엔진에서 배출되는 입자의 특성분석

An Analysis of Characteristics of Particulate Matter Exhausted from Diesel Locomotive Engines

  • 박덕신 (한국철도기술연구원철도환경 재료연구팀) ;
  • 김태오 (금오공과대학교 토목환경 및 건축공학부, 대기환경 및 나노입자연구실) ;
  • 김동술 (경희대학교 환경 응용화학대학 및 환경연구센터)
  • 발행 : 2003.04.01

초록

Numerous evidence have been reported that fine particulate matters can play an important role in threatening human health. Recently concerns on fine particle pollution from various engines may require re-examination of particulate emission standards. The particles emitted by most diesel engines are mainly divided into their size ranges such as Dp< 50 nm and 50 nm< Dp< 1,000 nm. In this work, the number concentration and the size distribution of fine particles emitted from an exhaust manifold of a railroad diesel engine were measured under load test conditions using a scanning mobility particle sizer (SMPS). The fine particles observed were within the range of 7 to 304 nm under different load conditions with two different dilution ratios. The fine particles exhibited unique patterns showing bimodal shapes in size distribution.

키워드

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