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미립화와 환경 2 : 대기오염기여율 평가를 위한 이동오염원의 이산화탄소 동위원소비 활용방안 연구
유흥민 ( Heung-min Yoo ),이종태 ( Jongtae Lee ),손지환 ( Jihwan Son ),박규태 ( Gyu-tae Park ),문선희 ( Sunhee Mun ),윤창완 ( Changwan Yun ),김정수 ( Jeongsoo Kim ) 한국액체미립화학회 2015 한국액체미립화학회 학술강연회 논문집 Vol.2015 No.-
Most of industrial facilities such as power generations, incinerators and refining facilities, can affect to air pollutant in Korea. Thus, we have to control them for keeping the clean and clear air. Additionally, it is important to find out the source of air pollutant. However, it is difficult to distinguish the mobile sources such as motorcycles and passenger cars from air pollutants sources, exactly. In present study, the analysis of carbon isotope ratio on vehicles was conducted to evaluate on air pollutant effect. For these, the exhaust of motorcycles and passenger cars were analyzed on that of 13C/12C. Furthermore, the carbon isotope ratios of exhaust were compared with fuels which are those of 4 manufacturing companies in Korea.
대형 경유트럭의 NO<sub>x</sub> 저감장치에 따른 배출가스 특성비교
문선희,유흥민,손지환,윤창완,박규태,김정수,이종태,Mun, SunHee,Yoo, Heung-Min,Son, JiHwan,Yun, Changwan,Park, Gyu Tae,Kim, JeongSoo,Lee, Jongtae 한국액체미립화학회 2015 한국액체미립화학회지 Vol.20 No.3
With increasing of GDP, the registration number of passenger cars has exceeded 20 million last year in Korea. Especially, the registration number of the diesel engine vehicles has been increasing. However, the WHO(World Health Organization) IARC (International Agency for Research on Cancer) has reported that diesel engine exhaust gas is an one of HAPs, which has carcinogenic for human, and they have designated it to Group 1. To solve this problem, exhaust gas from diesel engines has to be controlled. Thus, it has been controlling by European regulatory standard in Korea. On the other hand, in order to meet the enhanced emission regulations, all manufacturing company applied $NO_x$ control device to vehicles such as EGR (Exhaust Gas Recirculation), SCR (Selective Catalytic Reduction) and so on. However, these devices (EGR, SCR) were operated by difference reaction mechanism respectively, and the composition of exhaust gas would be differenced from that of them. In this study, it was conducted to evaluate variety characteristics on changing of exhaust gas composition by each $NO_x$ control device, and the heavy duty diesel trucks were chosen as experimental vehicles. From the result, it revealed that vehicles (with EGR) were discharged higher THC as 52.5% than that of others (with SCR). However, it did not followed that trend, in the case of CO; it was discharged as 57.2% lower than that of others (with SCR). In the future, these data would be used to apply to efficient $NO_x$ control device for meeting to EURO 6.
미립화와 환경 2 : 이륜자동차(EURO-3) 오염물질 및 미량유해물질 배출특성평가
이종태 ( Jongtae Lee ),유흥민 ( Heung-min Yoo ),손지환 ( Jihwan Son ),윤창완 ( Changwan Yun ),박규태 ( Gyu-tae Park ),문선희 ( Sunhee Mun ),김정수 ( Jeongsoo Kim ) 한국액체미립화학회 2015 한국액체미립화학회 학술강연회 논문집 Vol.2015 No.-
Recently, the researches for air pollutant control technologies have been performing in Korea, while considering an one of the latest main topics as problems on air pollutant control. However, it is difficult to investigate emission amount of air pollutant by passenger cars, because of lack of the domestic information about mobile source; the number of research institutes are less in the whole. Especially, the informations on registered numbers and emissions of motorcycles are less. Thus, in this study, the analysis that is based on experimental results was conducted for finding out source profiling and emission characteristics on motorcycles exhaust. For these experiments, the domestic motorcycles were chosen and evaluated by EURO III standard. From the result, controlled pollutants (CO, HC, NOx) were met to EURO III, but low displacement motorcycles showed a higher incomplete combustion reaction than that of 250 cc motorcycles. Additionally, uncontrolled pollutants (BTEX and 1,3-butadiene) were decreased with increasing a displacement of motorcycles. However, the emission trend of aldehydes was not followed that of those; the formaldehyde ratio increased upto approximately 33%, with increasing a displacement of motorcycles. In the future, it would be used to support the CAPSS as basic data of Korea.
대형 경유트럭의 NOx 저감장치에 따른 배출가스 특성비교
문선희 ( Sunhee Mun ),유흥민 ( Heung Min Yoo ),손지환 ( Jihwan Son ),윤창완 ( Changwan Yun ),박규태 ( Gyu Tae Park ),김정수 ( Jeong Soo Kim ),이종태 ( Jongtae Lee ) 한국액체미립화학회 2015 한국액체미립화학회지 Vol.20 No.3
With increasing of GDP, the registration number of passenger cars has exceeded 20 million last year in Korea. Especially, the registration number of the diesel engine vehicles has been increasing. However, the WHO (World Health Organization) IARC (International Agency for Research on Cancer) has reported that diesel engine exhaust gas is an one of HAPs, which has carcinogenic for human, and they have designated it to Group 1. To solve this problem, exhaust gas from diesel engines has to be controlled. Thus, it has been controlling by European regulatory standard in Korea. On the other hand, in order to meet the enhanced emission regulations, all manufacturing company applied NOx control device to vehicles such as EGR (Exhaust Gas Recirculation), SCR (Selective Catalytic Reduction) and so on. However, these devices (EGR, SCR) were operated by difference reaction mechanism respectively, and the composition of exhaust gas would be differenced from that of them. In this study, it was conducted to evaluate variety characteristics on changing of exhaust gas composition by each NOx control device, and the heavy duty diesel trucks were chosen as experimental vehicles. From the result, it revealed that vehicles (with EGR) were discharged higher THC as 52.5% than that of others (with SCR). However, it did not followed that trend, in the case of CO; it was discharged as 57.2% lower than that of others (with SCR). In the future, these data would be used to apply to efficient NOx control device for meeting to EURO 6.
미립화와 환경 2 : 대형 경유트럭의 휘발성유화합물(VOCs) 배출특성 연구
문선희 ( Sunhee Mun ),이종태 ( Jihwan Son ),손지환 ( Gyutae Park ),박규태 ( Heungmin Yoo ),유흥민 ( Changwan Yun ),윤창완 ( Jeongsoo Kim ),김정수 ( Jongtae Lee ) 한국액체미립화학회 2015 한국액체미립화학회 학술강연회 논문집 Vol.2015 No.-
WHO(World Health Organization) IARC(International Agency for Research on Cancer) has issued to consider diesel engine exhaust gas as an one of HAPs which has carcinogenic for human(Group 1). In this study, it was conducted to evaluate variety characteristics on changing of VOCs by aftertreatment systems, and the heavy duty diesel trucks were chosen as experimental vehicles. The results of the VOCs emission characteristics according to aftertreatment systems showed that compared to vehicles equipped with DPF, the vehicles equipped with SCR had 12.3%, 15.1%, 27.8%, and 22.2% lower BTEX emissions of Benzene, Toluene, Ethylbenzene, and Xylene, respectively. The emissions per pollutants were in the order of Toluene > Xylene > Ethylbenzene > Benzene > Styrene, and Toluene had the highest levels of emissions at 16.25 mg/km and 13.80 mg/km, respectively, for the vehicles equipped with DPF and SCR. The results of emission characteristics from vehicle speed, when the vehicle was operated at low speeds below 10.6 km/h, showed that due to incomplete combustion, emission was 75% higher. The results of analyzing the correlation between THC and BTEX showed a proportionate correlation with the rate of change of the emissions. As a result of analyzing the BTEX/THC ratio(%) for each of vehicle speed, Toluene was shown to have the highest proportion, and BTEX took up about 19.1% of the THC.