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이젝터형 희석장치와 SMPS 시스템을 사용한 디젤 입자상 배출 물질의 크기분포 측정에 관한 연구
황순철(Soonchul Hwang),김덕줄(Duckjool Kim),윤성한(Sunghan Yun),한방우(Bangwoo Han),김용진(Yongjin Kim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
This study presents the characteristics of particle number and size distributions from the diesel exhaust. These were measured for various load and speed conditions of two different engines using ejector-type diluter sampling system. The sampled exhausts were analyzed by scanning mobility particle sizer(SMPS). Because the dilution leads to the particle transformations of nucleation and condensation when exhaust particles are cooled and diluted, to fine the effect of dilution temperature on the particle number and size distribution, the additional measurements under various dilution temperatures were performed. As a result of this study, it is found the ultrafine particle is very sensitive to the exhaust and dilution temperatures.