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Reduction of particle emissions from gasoline vehicles with direct fuel injection systems using a gasoline particulate filter

Title
Reduction of particle emissions from gasoline vehicles with direct fuel injection systems using a gasoline particulate filter
Author
박성욱
Keywords
Gasoline particulate filter; Pressure drop; Nanoparticle; Regeneration
Issue Date
2018-07
Publisher
ELSEVIER SCIENCE BV
Citation
SCIENCE OF THE TOTAL ENVIRONMENT, v. 644, page. 1418-1428
Abstract
To analyze the effect of a gasoline particulate filter (GPF) attachment on the emissions of gasoline direct injection (GDI) vehicles, this study compares the emission results of three types of vehicles: conventional GDI vehicles, vehicles with a GPF at the close-couple catalytic converter (CCC), and vehicles with a GPF at the under-floor catalytic converter (UCC). Regulated particulate matter (PM) and particle number (PN) emitted from test vehicles were measured using gravimetric methods and condensation particle counter (CPC) equipment. In addition, this study analyzed nanoparticle size distribution, organic carbon (OC), elemental carbon (EC), and ammonia (NH3) using EEPS, OC-EC analyzer, and HFIR equipment. In cases of regulated particle emissions, both PM and PN satisfy EURO 6c and are reduced when a GPF is attached. Particulate emissions are especially reduced when the GPF is attached at the UCC position. This is believed to be why a soot layer is formed in stable flow. Emissions of nanoparticles and OC/EC are high in US06 mode at high driving speed. This is considered to be the influence of the regeneration of the GPF as the temperature of the exhaust gas rises. The emission of NH3 is also highest in US06 mode, which is related to catalytic conversion efficiency. (C) 2018 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0048969718324380?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/119286
ISSN
0048-9697; 1879-1026
DOI
10.1016/j.scitotenv.2018.06.362
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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