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http://dx.doi.org/10.7316/KHNES.2017.28.2.220

Experimental Study on the NO2/NOX Ratio from Exhaust of Diesel Vehicles by Chassis Dynamometer  

KIM, SUNMOON (Transportation Pollution Research Center, National Institute of Environmental Research)
KIM, JOUNGHWA (Transportation Pollution Research Center, National Institute of Environmental Research)
JUNG, SUNGWOON (Transportation Pollution Research Center, National Institute of Environmental Research)
SUNG, KIJAE (Transportation Pollution Research Center, National Institute of Environmental Research)
KIM, JEONGSOO (Transportation Pollution Research Center, National Institute of Environmental Research)
KIM, INGU (Transportation Pollution Research Center, National Institute of Environmental Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.28, no.2, 2017 , pp. 220-224 More about this Journal
Abstract
Nitrogen dioxide ($NO_2$) is an important urban pollutant in Korea. Expecially, diesel vehicles are responsible for the most traffic rated nitrogen oxide ($NO_X$) emission, including nitric oxide (NO) and nitrogen dioxide ($NO_2$). Though nitrogen oxide ($NO_X$) emission from vehicle was applied a strict enforcement of emission standard, the specific $NO_2$ fraction in $NO_X$ ($NO_2/NO_X$) from various types of diesel vehicles was not understood. In order to investigate the fraction of $NO_2/NO_X$, the vehicle emission study was carried out at the facility of Transport Pollution Research Center (TPRC), National Institute of Environmental Research (NIER), Korea. Three different types of diesel vehicles(VAN, SUV, passenger) were tested on the NIER driving mode. The result of $NO_2/NO_X$ ratio was over 0.1 for all test vehicles and the highest $NO_2$ emission was observed at the van vehicle. The observation was showed that the emission trend of $NO_2/NO_X$ for passenger and SUV vehicles were inversely proportional. Also, as the emission standard has been strengthen, the emission rate of $NO_2$ has been decrease.
Keywords
Nitrogen oxide; NO2/NOX ratio; NIER driving mode;
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Times Cited By KSCI : 1  (Citation Analysis)
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