Openly accessible

Effect of atmospheric aging on volatility and reactive oxygen species of biodiesel exhaust nano-particles

Pourkhesalian, A.M., Stevanovic, S., Rahman, M.M., Faghihi, E.M., Bottle, S.E., Masri, A.R., Brown, R.J. and Ristovski, Z.D. 2015, Effect of atmospheric aging on volatility and reactive oxygen species of biodiesel exhaust nano-particles, Atmospheric chemistry and physics, vol. 15, no. 16, pp. 9099-9108, doi: 10.5194/acp-15-9099-2015.

Attached Files
Name Description MIMEType Size Downloads
stevanovic-effectofatmospheric-2015.pdf Published version application/pdf 304.13KB 2

Title Effect of atmospheric aging on volatility and reactive oxygen species of biodiesel exhaust nano-particles
Author(s) Pourkhesalian, A.M.
Stevanovic, S.ORCID iD for Stevanovic, S. orcid.org/0000-0002-9472-0169
Rahman, M.M.
Faghihi, E.M.
Bottle, S.E.
Masri, A.R.
Brown, R.J.
Ristovski, Z.D.
Journal name Atmospheric chemistry and physics
Volume number 15
Issue number 16
Start page 9099
End page 9108
Total pages 10
Publisher European Geosciences Union
Place of publication Katlenburg-Lindau, Germany
Publication date 2015-08-17
ISSN 1680-7316
1680-7324
Keyword(s) atmospheric aging
biodiesel exhaust
nano-particles
biofuels
primary emissions
primary particulate matter emissions
science & technology
physical sciences
meteorology & atmospheric sciences
Summary In the prospect of limited energy resources and climate change, effects of alternative biofuels on primary emissions are being extensively studied. Our two recent studies have shown that biodiesel fuel composition has a significant impact on primary particulate matter emissions. It was also shown that particulate matter caused by biodiesels was substantially different from the emissions due to petroleum diesel. Emissions appeared to have higher oxidative potential with the increase in oxygen content and decrease of carbon chain length and unsaturation levels of fuel molecules. Overall, both studies concluded that chemical composition of biodiesel is more important than its physical properties in controlling exhaust particle emissions. This suggests that the atmospheric aging processes, including secondary organic aerosol formation, of emissions from different fuels will be different as well. In this study, measurements were conducted on a modern common-rail diesel engine. To get more information on realistic properties of tested biodiesel particulate matter once they are released into the atmosphere, particulate matter was exposed to atmospheric oxidants, ozone and ultra-violet light; and the change in their properties was monitored for different biodiesel blends. Upon the exposure to oxidative agents, the chemical composition of the exhaust changes. It triggers the cascade of photochemical reactions resulting in the partitioning of semi-volatile compounds between the gas and particulate phase. In most of the cases, aging lead to the increase in volatility and oxidative potential, and the increment of change was mainly dependent on the chemical composition of fuels as the leading cause for the amount and the type of semi-volatile compounds present in the exhaust.
Language eng
DOI 10.5194/acp-15-9099-2015
Field of Research 0401 Atmospheric Sciences
0201 Astronomical And Space Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2015, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30112933

Document type: Journal Article
Collections: School of Engineering
Open Access Collection
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in TR Web of Science
Scopus Citation Count Cited 3 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 14 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Fri, 24 Aug 2018, 15:10:20 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.