조성변화에 따른 천연가스차량의 성능특성(II)

Natural gas is one of the most promising alternative fuels for automotive vehicles. However, natural gas varies in composition between the originating fields and may be further modified due to processing and additional mixing. These variations are known to affect engine performance and emissions through changes in fuel metering and combustion characteristics. In the present study, it was examine the effect of gas compositions on vehicle performance such as fuel economy, driveability and exhaust emissions. Analysis are made of using 3 types of NGVs which was made by auto maker and 6 different fuels which are selected in consideration of the variation in fuel composition on the worldwide market. These results may be utilized to develop natural gas engine in auto maker and/or to establish the fuel standard in the refuelling station.