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Comparisons of the nanoparticle emission characteristics between GDI and PFI vehicles

Title
Comparisons of the nanoparticle emission characteristics between GDI and PFI vehicles
Author
박성욱
Keywords
Particulate matter mass; Particle number; Particle size distribution; Total PN concentration; Exposure; Environmental and health effects
Issue Date
2015-12
Publisher
SPRINGER
Citation
JOURNAL OF NANOPARTICLE RESEARCH, v. 17, NO 12, Article number 486, Page. 486-500
Abstract
To compare the particle emissions of gasoline direct injection (GDI) and port fuel injection (PFI) vehicles in this study, the particulate matter of exhaust emissions was sampled from a constant volume sampler tunnel and tailpipe using a chassis dynamometer. Using the gravimetric method and a condensation particle counter, the particulate matter mass (PM) and particle number (PN) of the particle size according to the current regulations were measured. Nanometer-sized particle emissions, which are smaller than regulated particle emissions, were measured by an engine exhaust particle sizer. Four test vehicles, which included two GDI vehicles and two PFI vehicles, were tested in various driving modes. The test results show that the particle emissions from the GDI vehicles were higher than the particle emissions from the PFI vehicles. In addition, the test vehicles had the highest emissions in cold start conditions. In the GDI vehicles, the PM and PN satisfied the current regulations but PN did not satisfy the EURO 6c regulations that will be implemented in 2017. In all driving modes, the particle size distribution show that the most common particle size was approximately 50 nm, and the results according to the driving patterns of each mode were confirmed.
URI
https://link.springer.com/article/10.1007%2Fs11051-015-3280-2http://hdl.handle.net/20.500.11754/29504
ISSN
1388-0764; 1572-896X
DOI
10.1007/s11051-015-3280-2
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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