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소형승합차량 및 RV차량의 유해대기오염물질(HAPs) 배출특성에 관한 연구
엄명도(Myungdo Eom),류정호(Jungho Ryu),유영숙(Youngsook Lyu),강대일(Daeil Kang),김종춘(Jongchoon Kim),박용희(Yonghee Park),김대욱(Daewook Kim),정성운(Sungwoon Jung) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Hazardous air pollutants(HAPs) are emitted from motor vehicles are known or suspected to have serious health effect. However, we don't have any regulation or standard related to HAPs from mobile source so far. Now HAPs control strategies are highly needed and must to be conducted research and analysis on mobile source. This study focus on the investigation of the characteristics of exhaust emission and estimate the HAPs emission factors in light duty diesel and LPG vehicle. Sampling and analytical methods to be settled in 2004 were used. EPA TO-14 method(Toxic Organic), TO-11A method, CARB SOP 028 method(California Air Resource Board Standard Operating Procedure) and Korean air pollution measurement methods were chosen for VOCs, Aldehydes, PAHs and metals respectively. These results will provide some information on the characteristics of HAPs from mobile source and be used for proper decision making of HAPs management like establishment of environmental quality standards in Korea.
엄명도(Myungdo Eom),박준홍(Junhong Park),백두성(Doosung Baik) 대한기계학회 2014 大韓機械學會論文集B Vol.38 No.8
차량에 탑재하여 운행 중 배출가스를 측정할 수 있는 이동식 배출가스 장비(PEMS)를 활용한 결함확인검사 방법을 미국은 2007년부터 시행하였고, 유럽은 2013년 EURO6부터 도입할 계획을 수립했다. 따라서 한국도 국내의 대형차 배출가스 관리의 중요성을 고려할 때 PEMS를 활용한 실 도로 주행 특성을 반영한 측정 방법의 도입이 필요한 시점이다. PEM의 다양한 활용 방안을 위하여 도로유형, 매연저감장치 및 공회전제한장치 그리고 에어컨 작동에 따른 배출가스 평가를 수행하였다. 본 연구는 PEMS을 활용한 상용차 결함확인 검사 방법을 분석하여 국내 실정에 적합한 대형차 결함확인 검사제도 시행에 필요한 기초자료를 마련하고자 한다. Since 2007, the defect confirmation test for vehicles using PEMS has been enforced in USA. This test can measure emissions from on-street vehicles using a device mounted on a car. Europe has confirmed its plan for introducing this test from EURO6, 2013. Thus, the Korean government is also under pressure to adopt this method that reflects the real-world driving conditions using PEMS, considering the emission controls for domestic heavy-duty vehicles. To provide various utilizations of the PEM, this emission test has been developed in accordance with the type of driving road, DPF, ISG , and air conditioner. This research aims to provide the fundamental materials for implementing defect confirmation tests for commercial vehicles, which are appropriate for domestic emission control situations, after studying the defect confirmation test methods for heavy-duty vehicles using PEMS.
CVS-75모드에서 차량의 주행거리, 주행패턴 및 엔진 예열상태에 따른 배출가스 특성
엄명도(Myungdo Eom),백두성(Doosung Baik) 대한기계학회 2012 大韓機械學會論文集B Vol.36 No.5
최근에 들어서 이산화탄소가 지구온난화의 원인으로 알려져 있기 때문에 온실가스 문제는 이슈화 되어 왔다. 본 연구는 한국에서 운행 중인 차량에서 이산화탄소 배출가스 영향인자 특성을 파악하고자 했다. 가솔린 자동차 129대, 디젤자동차 100대, LPG 자동차 34대 차량을 차대 동력계에서 시험했다. 시험과정에서 이산화탄소, 일산화탄소 그리고 연료저감율을 측정했다. 실험모드는 현재 한국에서 경차의 배출가스를 규제하기 위해서 배출계수를 산정하기 위해 개발된 CVS-75 모드에서 이루어졌다. 실험 결과 배기량, 연료소비율, 연료 종류, 주행패턴, 마일수 그리고 이산화탄소 사이의 관련성이 조사되었다. Recently green house gas emission problem has been issued because CO<sub>2</sub> emission is known to cause global warming. Hence, introduces more stringent emission and fuel economy requirements in various countries, including Korea. In this research, CO<sub>2</sub> emission factor characteristics of in-use cars, which are the most dominant vehicle type in Korea, were studied, and 129 gasoline vehicles, 100 diesel vehicles, and 34 LPG vehicles were tested on a chassis dynamometer. In the tests, CO and CO<sub>2</sub> emissions as well as fuel reduction rates weremeasured. The tests were conducted in the CVS-75 mode, which has been considered for developing emission factors for regulating emissions from light-duty vehicles in Korea. Through experiments, correlations among displacement, fuel consumption efficiency, fuel type, mileage, driving pattern, and CO<sub>2</sub> emission were investigated.
유영숙(Youngsook Lyu),류정호(Jungho Ryu),한종수(Jongsu Han),엄명도(Myungdo EOM),김종춘(Jongchun Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Motor vehicles are one of major sources of VOCs in Korea. Among two type of emission routes, tailpipe and evaporative way, tailpipe emission contributes more than 70% of whole VOCs emitted from vehicles. Even though the emission portion is small, evaporative VOCs are still important because of the serious hazardous to human health and environment. In this study, in order to investigate the evaporative VOCs emission, especially refueling emission, we tested 12 vehicles in ORVR SHED using EPA regulation test procedure. The VOCs emission rats were determined and characteristics by fuel temperature and fuel RVP were also discussed. Moreover by comparing the composition of fuel and vapor, we tried to figure out the relation between composition of fuel and vapor. The result of this study showed that the most abundant compounds of VOCs vapor are paraffines such as iso-butane and iso-pentane. The composition of vapor does not well matched with that of fuel because of the evaporative characteristics of individual compound. Over all results of this study will be contribute to the VOCs emission reduction strategies of MOE in the future.
다단임팩터, SMPS 및 ELPI를 이용한 디젤배출입자의 크기분포 측정
권순박(Soonbark Kwon),김대성(Daeseong Kim),이창(Chang Lee),이규원(Kyoowon Lee),임철수(Cheolsoo Lim),류정호(Jungho Ryu),엄명도(Myungdo Eom),조규백(Gyubaek Cho),김홍석(Hongsuk Kim),정용일(Youngil Jung),이종덕(Jongduk Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The size and mass distribution of diesel exhaust particles were measured using a cascade impactor, SMPS and ELPI with different engine operating conditions in engine speed and ratio. It was found that the total emission was increased with increasing engine speed and load ratio and about 80% of diesel exhaust particles were less than lum. The results of real time measurement of diesel particles by SMPS and ELPI showed that the peak diameter and number concentration increased as engine load ratio increased. It is interesting to note that the increasing rate at the size range of 265~385nm was the highest, while the nuclei mode particles (<50nm) were decreased or maintained constant when the engine load ratio increased. The size distribution measured dy SMPS and ELPI synchronously showed the reasonable correlations, however, the significant differences in absolute number concentration was observed.