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EURO 3에 의한 이륜자동차의 미량유해물질 배출특성평가
유흥민 ( Heung Min Yoo ),손지환 ( Ji Hwan Son ),박규태 ( Gyu Tae Park ),문선희 ( Sun Hee Mun ),윤창완 ( Chang Wan Yun ),김정수 ( Jeong Soo Kim ),이종태 ( Jong Tae Lee ) 한국분무공학회 2015 한국액체미립화학회지 Vol.20 No.4
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.
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.
대기오염물질 배출원 추적 가능성 평가 연구 : 연소기관(외연기관/내연기관)에 따른 이산화탄소 동위원소비 특성비교
유흥민 ( Heung-min Yoo ),정택호 ( Taek Ho Chung ),이상엽 ( Sang-yeop Lee ),박세원 ( Se-won Park ),서용칠 ( Yong-chil Seo ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 한국폐기물자원순환학회지 Vol.36 No.7
There are many issues related with environment in the world. As time goes by, it would be main problems for present generations in the near future. Especially, the problems for air pollutant including particulate matter (PM) need to be resolved among locals or nations. In order to develop the renewable energy sources sustainably, the facility operators should prove the harmlessness for environments, such as atmosphere, water, and health risk. In Korea, the government is faced with these problems. Especially, local citizens have been demanding suspension of operating and using the fluffsolid refused fuel (SRF) in combined heat and power plants. According to this problem, the government has announced the 4th master plan for renewable energy in Korea, one of the main contents is to decrease supplement proportion of the ‘waste to energy’ part from approximately 68 % to 29 %. However, this master plan could cause ‘combustible waste congestion’ because the balance between supply and demand was not considered. Thus, the efficient method to resolve should be developed, while considering the balance. To solve these issues, many researchers have been suggesting and researching to establish a tracking technology on air pollutant sources. It may serve an appropriate solution to us in the near future, if it can identify the air pollutant sources among variable sources, such as combined heat and power plant, a lot of vehicles, and another sources. In this study, the carbon isotope was used to identify sources among SRF, gasoline, diesel and motorcycles with vehicles in order to establish the Korean database of exhausted gas from various engines. In the case of SRF, gasoline, and diesel, the outcome has been revealed as the average of carbon isotope -26.814‰, - 26.949‰, and -28.298‰ respectively. As a result, the carbon isotope of area located in the near plant might expect to be in the range from -26.814‰ to -25.446‰, and that in the urban might expect to be about -30‰.
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.
순환유동층보일러의 과열기 튜브 부식에 알칼리 금속과 염소가 미치는 영향
백승기 ( Seung-ki Back ),유흥민 ( Heung-min Yoo ),장하나 ( Ha-na Jang ),정현태 ( Hyun-tae Joung ),서용칠 ( Yong-chil Seo ) 한국공업화학회 2017 공업화학 Vol.28 No.1
본 연구에서는 순환유동층 보일러 과열기 튜브의 부식 원인물질을 규명하여, 부식방지를 위한 방안을 모색하고자 하였다. 연료, 과열기 튜브 부식부위, 과열기 튜브에 부착된 재 및 보일러 재를 채취하여 성분분석을 수행하였다. 과열기튜브 부식부위에서 산화로 인한 O성분이 함유되어 있는 것을 확인하였다. 과열기 튜브 부착 재 및 보일러 재에서 6.1% 및 4.3%의 Cl이 분석되었으며, 이는 설계값의 약 14-20배 정도 높은 수치이다. 또한 알칼리 금속물질(K, Na, Ca)의 함량이 매우 높게 분석되었다. XRF 데이터를 이용하여 보일러에서 재의 슬래깅과 파울링에 대한 영향을 예측하였다. Basicity는 과열기 튜브 부착 재 및 보일러 재에서 각각 3.62 및 2.72로 산정되었으며, 설계값인 0.35에 비하여 높은 수치를 갖는 것으로 확인되었다. This study provides the identification of corrosion cause substances in super heater tube from a commercial scale circulating fluidized bed boiler. Electricity is produced by the combustion of biomass mainly wood waste. The biomass, super heater tube, super heater tube ash, and boiler ash were collected and components associated with corrosion were analyzed. A large amount of oxygen-containing material was found due to oxidation. The chlorine content was analyzed as 6.1% and 4.3% in super heater tube ash and boiler ash respectively which were approximately 20 and 14 times higher than those of designed values. Also, alkaline metal contents (K, Na, Ca) were very high in ash samples collected from super heater tube and boiler. The tendency of slagging and fouling was predicted based on X-Ray Fluorescence (XRF) results. Basicity that can lead to slagging was estimated as 3.62 and 2.72 in super heater tube and boiler ash, respectively. Slagging would occur with ash content when considering the designed value as 0.35.
이종태 ( Jong Tae Lee ),유흥민 ( Heung Min Yoo ),손지환 ( Ji Hwan Son ),윤창완 ( Chang Wan Yun ),문선희 ( Sun Hee Mun ),박규태 ( Gyu Tae Park ),김정수 ( Jeong Soo Kim ) 한국분무공학회 2015 한국액체미립화학회지 Vol.20 No.1
Recently, some researchers have been carried out risk assessment of vehicles exhaust on human health. Especially, some of VOCs which is non-controlled, was classified to hazardous pollutant, such as 1,3-Butadiene and BTEX(Benzene, Toluene, Ethylbenzene and Xylene). Therefore, the profile on non-controlled pollutant may be needed in the future, because it would be critical data or information to control them. Additionally, with increasing amount of motorcycle, the source profiling is essential for estimating emission factor and amount on motorcycle exhaust. For these, in this study, imported motorcycles (8 vehicles) were selected as a test model while considering the increasing ratio on sales volume between 2013 and 2014; it was also compared with domestic motorcycles on those. The experiment was conducted by driving mode, UDC and ECE+EUDC that made from EURO III. In addition, it was performed at cold start driving mode without effect by displace- ment, for evaluating only correlation of BTEX with HC. In order to apply the ratio (m,p-Xylene/o-Xylene) as a marker, the ratio was compared with those of tunnel, road side and residential area. As a result, it showed best correlation (R2=0.98) among those. In the future, it has to be considered as a marker for effect evaluation to atmospheric environment by exhaust emission.