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도로변 초미세먼지의 실시간 질량농도 및 부피농도 측정을 이용한 시간별 밀도 분석-광흡수 eBC에 대한 OPS 보정 중심
김은영(Eunyoung Kim),서석준(Seokjun Seo),김선문(Sunmoon Kim),정성운(Sungwoon Jung),이용민(Yongmin Lee),오세호(Sea-Ho Oh),박규태(Gyutae Park),김경훈(Kyunghoon Kim),김정화(Jounghwa Kim),홍유덕(Youdeog Hong),이태형(Taehyoung Lee),배민석(Mi 한국대기환경학회 2018 한국대기환경학회지 Vol.34 No.6
촉매제 요소함량에 따른 Urea-SCR의 배출가스 현황 조사
임윤성(Yunsung Lim),이종태(Jongtae Lee),김선문(Sunmoon Kim),박장민(Jangmin Park),문선희(Sunhee Moon),김동민(Dongmin Kim),김형준(Hyungjun Kim),김정수(Jeongsoo Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Ministry of Environment prescribes urea water by Clean Air Conservation Act. Urea water manufaturer used urea(high purity) and distilled water. Urea contents must be 31.8 ~ 33.2% (m / m) by Clean Air Conservation Act. But urea water manufacturer should be prepared with a urea content exceeded or under. so this research is evalustion of exhaust emission according the concentration urea rate and urea water usage.
RV차량 및 소형승합차량의 휘발성유기화합물 배출특성 연구
문선희,홍희경,김선문,서석준,정성운,정택호,홍유덕,김정화,Mun, Sunhee,Hong, Heekyoung,Kim, Sunmoon,Seo, Seokjun,Jung, Sungwoon,Chung, Taekho,Hong, Youdeog,Kim, Jounghwa 한국액체미립화학회 2018 한국액체미립화학회지 Vol.23 No.2
Volatile organic compounds (VOCs) are well known as ozone precursors from photochemical reactions and contribute to the formation of photochemical smog which pose health hazards. Also, some of these compounds directly affect the human health due to their toxicity such as benzene. In this study, NMVOCs composition in exhaust gas from recreational vehicle (RV) and (MPV) were characterized using a chassis dynamometer. The results for NMVOCs have reported that alkanes emission was higher than alkenes, aromatics and cycloalkanes due to reactive of diesel oxidation catalysts. The NMVOCs composition according to carbon number was highly distributed between C3 and C6~C8. During the engine cold start condition, NMVOCs emission was higher compared to the engine hot start condition due to the increased catalytic activity. The NMVOCs emission with DPF increased compared to that without DPF. The results of this study will be provide to calculate VOCs emissions from mobile source.
에탄올 함량비에 따른 가솔린 직접분사 차량의 나노입자 배출특성과 운전특성에 관한 연구
고아현(Ahyun Ko),김주원(Juwon Kim),명차리(Cha-Lee Myung),박장민(Jang-Min Park),김선문(Sunmoon Kim),박심수(Simsoo Park) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
This study focused on the particle emission characteristics of gasoline direct injection vehicle fueled with gasoline-ethanol blends. The test vehicle was operated on the CVS-75 mode and particle emissions were extracted through the GPMS the CVS tunnel consisted of solid particles like carbonaceous fraction, metal ash, etc. The test fuel were consisted of ethanol 0%, 10%, 30% and ethanol 50%. The test results showed that the particle number was decreased by increase of ethanol contents. The reduction efficiencies of particle emissions were from 10 % to 85 %. Also, the particle number of test vehicle could met the future regulation, Euro 6, when fueled with ethanol 30 %.