DOI: 10.1016/j.atmosenv.2014.08.025
Scopus记录号: 2-s2.0-84906056621
论文题名: Exhaust particles of modern gasoline vehicles: A laboratory and an on-road study
作者: Karjalainen P ; , Pirjola L ; , Heikkilä J ; , Lähde T ; , Tzamkiozis T ; , Ntziachristos L ; , Keskinen J ; , Rönkkö T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97 起始页码: 262
结束页码: 270
语种: 英语
英文关键词: Exhaust particles
; Gasoline direct injection
; Nucleation
; Particle emissions
; Soot
Scopus关键词: Direct injection
; Emission control
; Engines
; Laboratories
; Morphology
; Nucleation
; Particle size
; Roads and streets
; Size distribution
; Soot
; Vehicles
; Exhaust particles
; Gasoline direct injection
; Laboratory experiments
; Nucleation particles
; Number size distribution
; Particle characteristics
; Particle emissions
; Vehicle technology
; Gasoline
; gasoline
; lubricant oil
; oil
; unclassified drug
; emission
; emission control
; laboratory method
; morphology
; nucleation
; particle size
; particulate matter
; size distribution
; soot
; volatile substance
; acceleration
; air pollution control
; article
; ash
; car
; chemical composition
; combustion
; deceleration
; dynamometer
; exhaust gas
; gasoline direct injection engine
; motor vehicle
; particle size
; plume
; priority journal
; soot
; steady state
; transmission electron microscopy
; velocity
; viscosity
; volatilization
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Vehicle technology development and upcoming particle emission limits have increased the need for detailed analyses of particle emissions of vehicles using gasoline direct injection (GDI) techniques. In this paper the particle emission characteristics of modern GDI passenger cars were studied in a laboratory and on the road, with the focus on exhaust particle number emissions, size distributions, volatility and morphology. Both during acceleration and steady conditions the number size distribution of nonvolatile exhaust particles consisted of two modes, one with mean particle size below 30nm and the other with mean particle size approximately 70nm. Results indicate that both of these particles modes consisted of soot but with different morphologies. Both in laboratory and on the road, significant emissions of exhaust particles were observed also during decelerations conducted by engine braking. These particles are most likely originating from lubricant oil ash components. The semivolatile nucleation particles were observed in the laboratory experiments at high engine load conditions. Thus, in general, the study indicates that a modern gasoline vehicle can emit four distinctive types of exhaust particles. The differences in particle characteristics and formation should be taken into account in the development of emission control strategies and technologies and, on the other hand, in the assessment of the impact of particle emissions on environment and human health. © 2014 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81283
Appears in Collections: 气候变化事实与影响
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作者单位: Aerosol Physics Laboratory, Department of Physics, Tampere University of Technology, Tampere, Finland; Department of Technology, Metropolia University of Applied Sciences, Helsinki, Finland; Laboratory of Applied Thermodynamics, Department of Mechanical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece
Recommended Citation:
Karjalainen P,, Pirjola L,, Heikkilä J,et al. Exhaust particles of modern gasoline vehicles: A laboratory and an on-road study[J]. Atmospheric Environment,2014-01-01,97