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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.
김종춘(J.C. KIM),엄명도(MD. EOM),이종태(J.T. LEE),유영숙(Y.S. LYU),곽숙철(S.C. GWOAKk),전상진(S.G. JEON) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
LPG engines are similar to the gasoline engines. But there are some differences betwee them because liquid phase LPG have to be vaporized. Most of current LPG vehicles use the mixer type fuel system. While the new LPG vehicle technique LPLi(Lidquid Phase LPG Injection) is now developing. This technique will give the solution for emission and cold start problems.<br/> In this study, we investigated the emission characteristics of LPLi type and mixer type, and also studied the effects of LPG fuel composition on the emission characteristics.<br/> The results of this study are as follows. When tested with 90% butane fuel, two mixer type vehicles test results show that the one which has longer driving distance emitted more pollutants in the range of 49-92%. And compared LPLi type with mixer type when drived by CVS-75mode, LPLi type vehicles emitted less pollutants about 25~56%. When tested wit various composition fuels, mixer type emitted more VOCs than LPLi type regardlees of fuel composition, but the emission characteristics are similar in both vehicle type.