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김선문,김정화,정성운,성기재,김정수,김인구 한국수소및신에너지학회 2017 한국수소 및 신에너지학회논문집 Vol.28 No.2
Nitrogen dioxide (NO2) is an important urban pollutant in Korea. Expecially, diesel vehicles are responsible for the most traffic rated nitrogen oxide (NOX) emission, including nitric oxide (NO) and nitrogen dioxide (NO2). Though nitrogen oxide (NOX) emission from vehicle was applied a strict enforcement of emission standard, the specific NO2 fraction in NOX (NO2/NOX) from various types of diesel vehicles was not understood. In order to investigate the fraction of NO2/NOX, the vehicle emission study was carried out at the facility of Transport Pollution Research Center (TPRC), National Institute of Environmental Research (NIER), Korea. Three different types of diesel vehicles(VAN, SUV, passenger) were tested on the NIER driving mode. The result of NO2/NOX ratio was over 0.1 for all test vehicles and the highest NO2 emission was observed at the van vehicle. The observation was showed that the emission trend of NO2/NOX for passenger and SUV vehicles were inversely proportional. Also, as the emission standard has been strengthen, the emission rate of NO2 has been decrease.
홍희경,문선희,서석준,김정화,정성운,정택호,홍유덕,성기재,김선문,Hong, Heekyoung,Mun, Sunhee,Seo, Seokjun,Kim, Jounghwa,Jung, Sungwoon,Chung, Taekho,Hong, Youdeog,Sung, Kijae,Kim, Sunmoon 한국액체미립화학회 2018 한국액체미립화학회지 Vol.23 No.2
Emission characteristics of regulated pollutants (CO, NOx, HC and PM) and hazardous air pollutants (HAPs) from diesel heavy duty trucks equipped with EGR+pDPF and SCR for Euro 5 emission standards were investigated using a chassis dynamometer. In the case of regulated pollutants, diesel heavy duty trucks with EGR+pDPF emitted 79% less CO than those with SCR. Also, those with the SCR emitted 36% less NOx than those with the EGR+pDPF. The results of VOCs have show that alkanes emissions for heavy duty trucks with the EGR+pDPF and the SCR have been higher than alkenes, cycloalkanes and aromatics. In the case of individual VOCs, the highest of propene emissions for 11.3~16.1% occupied. For aromatics group, benzene emissions are the highest percentage for 4.4~15.5%. In the future, the results of present study will provide basic data to set up HAPs emissions inventory for mobile source.
포스터 전시회 : 연료첨가제 주입 전,후 승용차의 규제물질 배출현황
정성운 ( Sungwoon Jung ),손지환 ( Jihwan Son ),홍희경 ( Heekyoung Hong ),성기재 ( Kijae Sung ),김정수 ( Jeongsoo Kim ),김정화 ( Jounghwa Kim ) 한국액체미립화학회 2015 한국액체미립화학회 학술강연회 논문집 Vol.2015 No.-
This study was designed to investigate characterization of regulated pollutants (CO, HC, NOx and PM) emitted from 134 diesel and gasoline passenger cars based on emission standards according to fuel additives. The experiments using chassis dynamometer were conducted under NEDC and CVS-75 modes. Comparison for fuel additive management and test between Korea, USA, EU and Japan, Korea was more strict than others. For with/without fuel additives according to diesel emission standards, NOx of EURO 4 and EURO 5 showed a relatively similar tendency. In the case of PM reduction rate, EURO 5 was over 20% decreased than EURO 4. In the case of standard deviation/average ratio for gasoline vehicles, variation interval was big for LEV 23.3 ~ 58% and ULEV 31.6 ~ 56.4%. Following the imposition of stricter regulations (EURO 5 and ULEV), difference rate for standard deviation was big. Especially, in the case of diesel vehicles, difference rate for NOx 68% and PM 48% was the biggest. The results of present study will contribute to set up emission standards for Korean fuel additives.
연료첨가제 주입에 따른 승용차의 규제물질 배출특성 분석
정성운 ( Sung Woon Jung ),손지환 ( Ji Hwan Son ),홍희경 ( Hee Kyoung Hong ),성기재 ( Ki Jae Sung ),김정수 ( Jeong Soo Kim ),김정화 ( Joung Hwa Kim ) 한국분무공학회 2015 한국액체미립화학회지 Vol.20 No.4
This paper was designed to investigate emission characteristics of regulated pollutants (CO, HC, NOx and PM) from 134 diesel and gasoline passenger cars based on emission standards according to fuel additives. The experiments using chassis dynamometer were conducted under NEDC and CVS-75 modes. Comparison for fuel additive management and test between Korea, USA, EU and Japan, Korea was more strict than others. The fuel additives of this study was satisfied within fuel manufacturing standards. For with/without fuel additives according to diesel emission standards, NOx of EURO 4 and EURO 5 showed a relatively similar tendency. In the case of PM reduction rate, EURO 5 was over 20% increased than EURO 4.In the case of standard deviation/average ratio for gasoline vehicles, variation interval was big for LEV 23.3~58% and ULEV 31.6~56.4%. Following the imposition of stricter regulations (EURO 5 and ULEV), difference rate for standard deviation was big. Especially, in the case of diesel vehicles, difference rate for NOx 68% and PM 48% was most big. The results of present study will be of assistance in completing the legislative process and will provide basic data to set up emission standards for fuel additives in Korea.