TY - JOUR
T1 - Mobile source air toxic emissions from direct injection spark ignition gasoline and LPG passenger car under various in-use vehicle driving modes in Korea
AU - Myung, Cha Lee
AU - Ko, Ahyun
AU - Lim, Yunsung
AU - Kim, Sunmoon
AU - Lee, Jongtae
AU - Choi, Kwanhee
AU - Park, Simsoo
N1 - Funding Information:
This study was supported by the CEFV (Center for Environmentally Friendly Vehicle) as Global-Top Project of KMOE (Ministry of Environment, Korea) and Korea University Grant. The authors gratefully acknowledge the Transportation Pollution Research Center in the National Institute of Environmental Research for the vehicle tests and emission analyses. We also thank Hyundai Motor Company, Motonic Corporation, and Continental-Automotive Systems Corporation for their technical assistance for the development of LPG-DI vehicle.
PY - 2014
Y1 - 2014
N2 - Mobile source air toxic (MSAT) emissions from a direct injection spark ignition (DISI) passenger vehicle fueled with gasoline and liquid phase liquefied petroleum gas (LPG) were compared using a chassis dynamometer under several in-use vehicle driving conditions. For operation of a dedicated LPG-DI engine, low-pressure fuel systems were specially installed and various engine control parameters were recalibrated considering different chemical properties of LPG. A series of the National Institute of Environmental Research (NIER) modes for determining the emission factors of in-use vehicles in Korea were chosen to quantify not only the regulated emissions with particles but also the unregulated emissions of carbonyls, BTEX, and PAHs from a DISI light-duty vehicle (LDV) with gasoline and LPG. The regulated and particle emissions of LPG-DI vehicles showed strong reduction, and the proportions of sub-23 nm particles were 32-35% in gasoline and 50-65% in LPG. The results revealed that the levels of the MSAT emissions from a DISI engine were closely related to the driving patterns and the fuel properties. A substantial reduction of regulated emissions, particulates, BTEX, and particle-bound PAH emissions was achieved from a LPG-DI vehicle in real driving conditions. Carbonyl compounds acetaldehyde and acrolein showed significant increment from a LPG-DI vehicle.
AB - Mobile source air toxic (MSAT) emissions from a direct injection spark ignition (DISI) passenger vehicle fueled with gasoline and liquid phase liquefied petroleum gas (LPG) were compared using a chassis dynamometer under several in-use vehicle driving conditions. For operation of a dedicated LPG-DI engine, low-pressure fuel systems were specially installed and various engine control parameters were recalibrated considering different chemical properties of LPG. A series of the National Institute of Environmental Research (NIER) modes for determining the emission factors of in-use vehicles in Korea were chosen to quantify not only the regulated emissions with particles but also the unregulated emissions of carbonyls, BTEX, and PAHs from a DISI light-duty vehicle (LDV) with gasoline and LPG. The regulated and particle emissions of LPG-DI vehicles showed strong reduction, and the proportions of sub-23 nm particles were 32-35% in gasoline and 50-65% in LPG. The results revealed that the levels of the MSAT emissions from a DISI engine were closely related to the driving patterns and the fuel properties. A substantial reduction of regulated emissions, particulates, BTEX, and particle-bound PAH emissions was achieved from a LPG-DI vehicle in real driving conditions. Carbonyl compounds acetaldehyde and acrolein showed significant increment from a LPG-DI vehicle.
KW - Carbonyl compounds
KW - In-use vehicle driving mode
KW - LPG-direct injection
KW - Mobile source air toxic emissions
KW - Particulate emissions
KW - Polycyclic aromatic hydrocarbons
UR - http://www.scopus.com/inward/record.url?scp=84888160198&partnerID=8YFLogxK
U2 - 10.1016/j.fuproc.2013.10.013
DO - 10.1016/j.fuproc.2013.10.013
M3 - Article
AN - SCOPUS:84888160198
SN - 0378-3820
VL - 119
SP - 19
EP - 31
JO - Fuel Processing Technology
JF - Fuel Processing Technology
ER -