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국내 휘발유 승용차의 CO<sub>2</sub> 배출 현황
유영숙,류정호,정성운,전민선,김대욱,엄명도,김종춘,Lyu, Young-Sook,Ryu, Jung-Ho,Jung, Sung-Woon,Jeon, Min-Seon,Kim, Dae-Wook,Eom, Myung-Do,Kim, Jong-Choon 한국자동차공학회 2007 한국 자동차공학회논문집 Vol.15 No.2
As the concerns regarding global worming were increased, the pressure of greenhouse gas(GHG) emission reduction on mobile source was also increased. Carbon dioxides contribute over 90% of total GHG emission and the mobile source occupies about 20% of this $CO_2$ emission. Therefore automotive exhaust is suspected to be one of the major reasons of the rapid increase in greenhouse effect gases in ambient air. In this study, in order to investigate $CO_2$ emission characteristics from gasoline passenger cars(PC), which is the most dominant vehicle type in Korea, 106 vehicles were tested on the chassis dynamometer. $CO_2$ emissions and fuel efficiency were measured. The emission characteristics by displacement, gross vehicle weight, vehicle speed and CVS-75/vehicle speed mode were discussed. Test modes were vehicle speed modes and CVS-75 mode that have been used to develop emission factors and to regulate for light-duty vehicle in Korea. It was found that $CO_2$ emissions showed higher large displacement, heavy gross vehicle weight, low vehicle speed and CVS-75 mode than small displacement, light gross vehicle weight, high vehicle speed and vehicle speed mode, respectively. From these results, correlation between $CO_2$ emission and fuel efficiency was also determined. The results of this study will contribute to domestic greenhouse gas emissions calculation and making the national policy for climate change.
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.
유영숙(Y.S.Lyu),류정호(J.H.Ryu),엄명도(M.D.Eom),전민선(M.S.Jeon),김대욱(D.U.Kim),정성운(S.U.Jung),김득수(D.S.Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_1
In Rio de Janeiro in June 1992, The around world adapt convention on climate change which indicated to start international effort for prevention of greenhouse. According to agree the obligatory reduction of greenhouse gas specified Gyoto protocol, Our country which is 10th of the world in greenhouse gas emission, member of OECD will be pressured to reduce greenhouse gas.<br/> In this study in order to prepare obligatory reduction measure estimated the greenhouse gas emission factor and emission from automobile which is basic data to make emission statistics by Tier 3 method.<br/> In this study, in order to investigate greenhouse gas emission characteristics from gasoline passenger cars, 30 vehicles were tested on the chassis dynamometers and N,O, one of major greenhouse gas, were measured. The emission characteristics by manufacturer, model year, displacement, and vehicles speed were discussed.
유영숙(Youngsook Lyu),엄명도(Myoungdo Eom),류정호(Jungho Ryu),박용희(Yonghee Park),김선문(Sunmoon Kim),임철수(Cheolsoo Lim),김종춘(Jongchoon Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Emissions from automobiles have long been considered a prime source of pollutants involved in smog formation and ozone production. Especially VOCs are associated with serious environmental problems such as photochemical smog as well as human health effects. Since motor vehicles are a major source of VOCs, estimation of emission from mobile source is the most important factor to control VOCs in atmosphere. In this study in order to evaluate tailpipe VOCs emission from motor vehicles, mass emissions of non-methane volatile organic compounds from 20 vehicles were determined. Measurments were made on a chassis dynamometer using CVS-75 mode and speed specific drive mode depend on the driving velocity. Target VOCs are 53 compounds determined as the volatile ozone precursor. The individual VOCs composition of vehicle emission and emission rate were also determined. In case of gasoline vehicles, VOCs emission from over 80,000㎞ vehicles were about 46% larger than less 80000㎞ vehicles. The difference between benzene and toluene according to driving mileage was 44% and 26% respectively. The composition of VOCs were different by fuel type. The order of VOCs composition was paraffins(44%)>aromatics(34%)>olefins in gasoline vehicle emission, paraffins>olefins>aromatics in light duty diesel vehicle emission. The VOCs emissions were decreased as vehicle speed increasing. From these results we finally determined the various emission factor by kind of vehicle. In future, this research will be used for calculating total VOCs emission from automobiles.
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(MyoungDo EOM),류정호(JungHo RYU),유영숙(YoungSook LYU),김종춘(JongChun KIM),김선문(SunMoon KIM),임철수(CheolSoo LIM) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
We investigated the tailpipe VOCs emission from motor vehicle last year and continuously studied the evaporative emission of gasoline and LPG vehicle this year. On the basis of the results of these studies, the basic emission factor and management plan for motor vehicle related VOCs emissions are proposed.<br/> The result of this study shows that the diurnal breathing loss emission rate was large than hot soak emission rate about 2 times, and the evaporative VOCs emissions from ove<br/> 80,000km vehicle were 2 times larger than less 80,000km vehicle. As the fuel R VP increased from 7 to 11, the emission rate also increased more than 2 times.<br/> The individual composition of evaporative VOCs was different by fuel type. In case of gasoline vehicle, the order of evaporative VOCs composition was paraffins>aromatics>olefins, and some kinds of health effective aromatics like benzene, toluene, ethylbenzene, xylene were included more than 10%. In case of LPG vehicle, the most abundant component of evaporative and exhaust VOCs emission was butane.<br/>