缸内直喷汽油车细小颗粒物排放特性研究

Abstract
Figure/Table
References
Related Citation (3)

Download: PDF (609 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Three direct-injection gasoline vehicles meeting China-6 emission standard were selected for cold start WLTC tests. The emission characteristics of solid particles above 23nm and particles containing volatile/semi-volatile components above 6nm were measured on the three vehicles. The test results showed that particles containing volatile/semi-volatile components in the particle size range of 6~30nm were mainly produced in the WLTC cycle deceleration condition, high-speed section, and ultra-high-speed section. Volatile/semi-volatile particles in the particle size range of 30~2500nm were mainly produced in the ultra-high-speed section. Solid particles above 23nm accounted for the bulk of the emissions in the rest conditions. GPF had limited effectiveness in intercepting particles in the 6~30nm particle size range. Moreover, GPF regeneration produced high concentrations of particles in the range of 6~30nm. Analysis of the carbonaceous composition of particles showed that volatile/semi-volatile particles had little effect on PN emissions of solid particles above 23nm measured by the emission regulation but had a significant impact on PM emissions.

Key words： light-duty vehicles direct-injection gasoline engines fine particles particle number

Received: 01 December 2021

PACS:

X703.1

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Jia-chen
	GE Yun-shan
	WANG Xin
	JIANG Ping
	WANG Xian-gang
	ZENG Jun
	XU Chang-jian

Cite this article:

LI Jia-chen,GE Yun-shan,WANG Xin等. Emission characteristics of fine particles from direct-injection gasoline vehicles[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(6): 2569-2576.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I6/2569

[1]	Dehghani S, Fararouei M, Rafiee A, et al. Prenatal exposure to polycyclic aromatic hydrocarbons and effects on neonatal anthropometric indices and thyroid-stimulating hormone in a middle eastern population[J]. Chemosphere, 2022,286(1316051).
[2]	Liu C, Chen R, Sera F, et al. Ambient Particulate Air Pollution and Daily Mortality in 652 Cities[J]. New England Journal of Medicine, 2019,381(8):705-715.
[3]	帅石金,董哲林,郑荣,等.车用汽油机颗粒物生成机理及排放特性研究进展[J].内燃机学报, 2016,34(2):105-116.Shuai S J, Dong Z L, Zheng R, et al. Review of formation mechanism and emission characteristics of particulate matter from automotive gasoline engines[J]. Transactions of CSICE, 2016,34(2):105-116.
[4]	Yang H, Dhital N B, Wang L, et al. Chemical characterization of fine particulate matter in gasoline and diesel vehicle exhaust[J]. Aerosol and Air Quality Research, 2019,19(6):1439-1449.
[5]	Li J, Ge Y, Wang H, et al. Effects of different diesel particulate filter on emission characteristics of in-use diesel vehicles[J]. Energy Sources Part A-Recovery Utilization and Environmental Effects, 2019,41(24):2989-3000.
[6]	R'Mili B, Boreave A, Meme A, et al. Physico-chemical characterization of fine and ultrafine particles emitted during dieselparticulate filteractive regeneration of Euro5diesel vehicles[J]. Environmental Science& Technology, 2018,52(5):3312-3319.
[7]	Zhang W, Ma X, Shuai S, et al. Effect of gasoline aromatic compositions coupled with single and double injection strategy on GDI engine combustion and emissions[J]. Fuel, 2020,278(118308).
[8]	Raza M, Chen L, Leach F, et al. A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques[J]. Energies, 2018,11(14176).
[9]	Baek S, Jin D, Jang W, et al. Evaluation of the time-resolved nanoparticle emissions and the vehicle performance characteristics for a turbocharged gasoline direct-injection vehicle with a metal-foam gasoline particulate filter[J]. Proceedings of the Institution of Mechanical Engineers Part D-Journal of Automobile Engineering, 2016,230(6):745-753.
[10]	秦艳红,胡敏,李梦仁,等.缸内直喷汽油机排放PM2.5的理化特征及影响因素[J].中国环境科学, 2016,36(5):1332-1339.Qin Y H, Hu M, Li M R, et al. Physical and chemical characteristics of PM2.5 emissions from gasoline direct injection engine and its influence factors[J]. China Environmental Science, 2016,36(5):1332-1339.
[11]	Zheng Z, Johnson K C, Liu Z, et al. Investigation of solid particle number measurement:existence and nature of sub-23nm particles under PMP methodology[J]. Journal of Aerosol Science, 2011,42(12):883-897.
[12]	Choi K, Kim J, Myung C, et al. Effect of the mixture preparation on the nanoparticle characteristics of gasoline direct-injection vehicles[J]. Proceedings of the Institution of Mechanical Engineers Part D-Journal ofAutomobile Engineering, 2012,226(D11):1514-1524.
[13]	胡志远,夏孝程,宋博,等.缸内直喷汽油车颗粒物数量及可溶性有机组分排放特性[J].中国环境科学, 2021,41(3):1095-1101.Hu Z Y, Xia X C, Song B, et al. Particle number and solubleorganic fraction characteristics of particle emissions from gasoline direct injection vehicle[J]. China Environmental Science, 2021,41(3):1095-1101.
[14]	Alfoeldy B, Giechaskiel B, Hofmann W, et al. Size-distribution dependent lung deposition of diesel exhaust particles[J]. Journal of Aerosol Science, 2009,40(8):652-663.
[15]	Attar M A, Xu H. Correlations between particulate matter emissions and gasoline direct injection spray characteristics[J]. Journal of Aerosol Science, 2016,102:128-141.
[16]	Fushimi A, Kondo Y, Kobayashi S, et al. Chemical composition and source of fine and nanoparticles from recent direct injection gasoline passenger cars:effects of fuel and ambient temperature[J]. Atmospheric Environment, 2016,124(A):77-84.
[17]	Choi K, Kim J, Ko A, et al. Size-resolved engine exhaust aerosol characteristics in a metal foam particulate filter for GDI light-duty vehicle[J]. Journal of Aerosol Science, 2013,57:1-13.