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Study on the Characteristics of Carbon Dioxide Emissions Factors from Passenger Cars  

Yoo, Jeong-Ho (Transportation Emission Research Center, National Institute of Environmental Research)
Kim, Dae-Wook (Transportation Emission Research Center, National Institute of Environmental Research)
Yoo, Young-Sook (Transportation Emission Research Center, National Institute of Environmental Research)
Eum, Myung-Do (Transportation Emission Research Center, National Institute of Environmental Research)
Kim, Jong-Choon (Transportation Emission Research Center, National Institute of Environmental Research)
Lee, Sung-Wook (Graduate School of Automotive Engineering, Kookmin University)
Baik, Doo-Sung (Department of Computer-aided Mechanical Design Engineering, Daejin University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.4, 2009 , pp. 10-15 More about this Journal
Abstract
Emission regulations on greenhouse gas(GHG) in automobiles have been stringent because of global warming effect. Over 90% of total GHG emission are carbon dioxides and about 20% of this $CO_2$ emission are emitted from automobiles. In this study, 110 vehicles were tested on a chassis dynamometer and $CO_2$ emissions and fuel economy were measured in order to investigate the characteristics of $CO_2$ emission factor from passenger vehicles which are the most dominant vehicle type in Korea. The characteristics of emissions in accordance with displacements, gross vehicle weight, NIER and CVS-75 speed mode were discussed. It was found that vehicles having larger displacement, heavier gross vehicle weight, automatic transmission and specially at cold start emitted more $CO_2$ emissions. From these results, correlation between $CO_2$ emission and fuel economy was also obtained. This study may contribute to evaluate domestic greenhouse gas emissions and establish national policies on climate changes in future.
Keywords
Greenhouse gas; Carbon dioxide emission factor; Fuel efficiency; Gross vehicle weight; NIER;
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