이석환 김홍석 이승재 배귀남 2024-01-20T18:00:43Z 2024-01-20T18:00:43Z 2021-09-06 2011-01 1225-6382 https://pubs.kist.re.kr/handle/201004/130746 To measure the traffic pollutants with high temporal and spatial resolution under real conditions a mobile emission laboratory (MEL) was designed and built in KIST with close-cooperation with KIMM and Yonsei university. The equipment of the mini-van provides gas phase measurements of CO, NOx, CO_2, THC (Total hydrocarbon) and number density & size distribution measurements of fine and ultra-fine particles by a fast mobility particle sizer (FMPS)and a condensation particle counter (CPC). The inlet sampling port above the bumper enables the chasing of different type of vehicles. This paper introduces the construction and technical details of the MEL and presents data from the car chasing experiment of diesel and CNG city bus. The dilution ratio was increased rapidly according to the chasing distance. Most particles from the diesel city bus were counted under 300 nm and the peak concentration of the particles was located between 40-60 nm. However, the most particles from the CNG city bus were nano particle counted under 50 nm. Korean 한국자동차공학회 차량 추적을 위한 이동형 자동차 배출가스 측정시스템(MEL) 구축 A Mobile Emission Laboratory for Car Chasing Experiment Article 2 한국자동차공학회 논문집, v.19, no.1, pp.109 - 116 한국자동차공학회 논문집 19 1 109 116 kci ART001511034 Size distribution(사이즈 분포) Mobile emission laboratory(이동형 자동차 배출가스 측정시스템) Car chasing(차량추적) FMPS(실시간 입경분포 측정기) CPC(입자 수농도 측정기)