http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정일록(I.R.Jung),황순홍(S.H.Hwang) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
This paper presents the current status of pollution from automotives and future trends, the current's exhaust emission standard and the trend, as well as the airpollution reduction measures<br/> The number of vehicles is going to be about ten million until July, 1997, and is expected to be approximately 1.4 times in 2005 compared with 1995. Although the number of vehicles per 1,000 peoples in Korea amounts reaches to just 1/2.5~1/3.7 of that of advanced countries, the effect of vehicles on air pollution is very high. The survey of present contributions of emission for each kind of vehicles shows that CO and HCs come mainly from gasoline vehicles, and NOX and PM from heavy-duty diesel vehicles.<br/> In order to reduce the exhaust emissions from vehicles, the emission standard will be tightened year by year. The national standard will meet the level of advanced countries by the year. In addition, the measurement of NOX will be taken to identify the characteristics of emission patterns for in-use vehicles.<br/> The measures for the abatement of air pollution are to develop the techniques of reducing the CO and HCs for passenger vehicles, and NOx and PM for heavy-duty diesel vehicles. Development of electric vehicles, and vehicles using CNG and hydrogen fuel will be accerlerated and supported by government. Moreover, the economic incentives will be given to the low-pollution vehicles, which is known widely and distributed to the public.<br/> The program to advance the quality of fuel should be propelled together with the vehicle-manufacturing companies and the oil-refining companies.<br/>
김종춘(J.C.Kim),정일록(I.R.Jung),박용희(Y.H.Park),황순홍(S.H.Hwang) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
In this study, In-use vehicle emission were investigated/compared in operating conditions for gasoline and LPG vehicles produced during 1988-1995. The following conclusions could be drawn from the study.<br/> 1. Non-load operating condition and load condition were carried out for 153 in-use gasoline as well as LPG vehicles. The exhaust emission of HC and CO in non-load operating condition was two times higher than load operating condition, but the emission of NOX was 87.0 % higher in the load operating condition.<br/> 2. The load operating condition, which is similar to practical operating condition, turned out to be more appropriate for the measurement of NOX emission. A lot of research for reducing NOx measures are proceeding in developed country because vehicle which exhaust gas purification system burn downed, exhaust a lot of NOx in this case Therefor our country should be established by the law for reducing NOx anf develop the operating procedures and test limit.<br/> 3. The one of test procedure is applicable of exhaust emission test procedure for loaded operating because 50% loaded 25mile speed's operating condition and 25% loaded 15 mile speed's has similar to the results of exhaust emission and is forecasted same exhaust emission reduction.<br/>
김종춘(J.C.Kim),정일록(I.R.Jung),황순홍(S.H.Hwang),장은성(E.S.Jang) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
Exhaust emission characteristics was investigated on gasoline vehicle which exceed by exhaust emission guarantee period(5 year:80,000 km). Before exhaust emission control equipped parts of vehicle which exceed by exhaust emission guarantee period(5 year:80,000 km). each pollutants emission was HC 0.41g/km, CO 4.17g/km, NOx 0.62g/km. These HC and CO emission was double of exhaust emission standard within exhaust emission guarantee period. After repair of these gross pollutant emission vehicle, each pollutant emission was HC 0.16g/km, CO 1.06g/km, NOx 0.19g/km. These emission characteristics was similar to new vehicle's. Although exhaust emission of vehicle was not related uesd year, Exhaust emission was highly increased on 5 year over used vehicle.<br/>