A Study On Characteristics Of Carbon Dioxide Emissions From Passenger Cars
JOURNAL OF KOREAN SOCIETY FOR ATMOSPHERIC ENVIRONMENT(2006)
Abstract
Automotive exhaust is suspected to be one of the major reasons of the rapid increase in greenhouse effect gases in ambient air. As the concerns regarding global worming were increased, the pressure on mobile source greenhouse gas (GHG) emission were also increased. Carbon Dioxides contribute over 90% of total GHG emission and the mobile source occupies about 20% of this CO2 emission. In this study, in order to investigate CO2 emission characteristics from gasoline and LPG passenger cars (PC), which is the most dominant vehicle type in Korea, 53 vehicles were tested on the chassis dynamometer. CO2 emissions and fuel consumption efficiency were measured. The emission characteristics by fuel type, model year, mileage, vehicle speed and transmission type were also discussed. Test modes used in this study were NIER 10 modes and CVS-75 mode, which have been used for developing emission factors and testing new vehicles respectively. The results of this study showed that the main factors which have significant influences on the CO2 emissions are fuel type, transmission type, displacement of vehicle and mileage. The correlation between CO2 emission and FE was also determined by comparing CO2 emission and fuel consumption efficiency. The overall results of this study will greatly contribute to domestic greenhouse gas emissions calculation and designing national strategies for climate change.
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Key words
CO2, Carbon dioxide emissions, Passenger cars, Fuel consumption efficiency, Greenhouse gases, Vehicle speed
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