NDLI: Impacts of load mass on real-world PM$_{1}$ mass and number emissions from a heavy-duty diesel bus

Content Provider	Springer Nature Link
Author	Zhang, S. Wang, C. Jiang, J. Li, Z. Zheng, X. Hao, J. Wu, Y.
Copyright Year	2013
Abstract	On-road emission profiles of ultra-fine particle matter with aerodynamic diameter <1 μm (PM$_{1}$) were obtained from a Euro IV diesel bus in Beijing under two typical load mass conditions. PM$_{1}$ mass and number emissions were recorded second by second using an electrical low-pressure impactor (ELPI). An on-road driving mode binning method was applied to relate instantaneous emission rate with real-time on-road driving conditions, and an engine-operating mode binning method was used to explore the impacts of engine load on PM$_{1}$ emission characteristics. Our results show that higher load mass will increase both particle mass and number emissions. Measured PM$_{1}$ mass emission factors were 0.147 and 0.185 g/km under low and high load mass conditions, respectively. PM$_{1}$ number emission factors were 3.71 × 10$^{13}$ and 4.58 × 10$^{13}$ #/km. In addition, load mass also influenced the size-resolved concentration of PM mass and number from that sampled bus. For example, under low load mass conditions, an obvious peak of PM number concentration was observed situated in the second channel of the ELPI corresponding to the median diameter 63 nm. By contrast, peak concentration of the PM number was increased under high load mass conditions and situated in the third channel of the ELPI corresponding to the median diameter 109 nm.
Starting Page	1261
Ending Page	1268
Page Count	8
File Format	PDF
ISSN	17351472
Journal	International Journal of Environmental Science & Technology
Volume Number	12
Issue Number	4
e-ISSN	17352630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-01-08
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Size distribution Ecotoxicology Diesel bus PM$_{1}$ Water Management Waste Water Technology Aquatic Pollution Engine load Environment Water Pollution Control Environmental Chemistry Particle number Environmental Science and Engineering Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Environmental Engineering Agricultural and Biological Sciences

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