TY - JOUR
T1 - Experimental analysis of the morphology and nanostructure of soot particles for butanol/diesel blends at different engine operating modes
AU - Verma, Puneet
AU - Jafari, Mohammad
AU - Guo, Yi
AU - Pickering, Edmund
AU - Stevanovic, Svetlana
AU - Bodisco, Timothy A.
AU - Fernando, Joseph F.S.
AU - Golberg, Dmitri
AU - Brooks, Peter
AU - Brown, Richard
AU - Ristovski, Zoran
N1 - Funding Information:
One of the authors (P.V.) would like to acknowledge QUT for providing financial assistance in the form of a Ph.D. scholarship (QUTPRA). The authors would also like to acknowledge Central Analytical Research Facility (CARF) for TEM education and assistance in the operation. The author would also like to acknowledge: laboratory assistance from Mr. Noel Hartnett and the software developer Mr. Andrew Elder from DynoLog Dynamometer Pty Ltd. The authors would also like to acknowledge the support from the Australian Research Council Discovery Grant (DP180102632).
Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/6/20
Y1 - 2019/6/20
N2 - In order to comply with strict emission standards, a reduction in diesel particle matter emissions can be addressed by minimizing particle formation and by optimizing particle oxidation in the combustion chamber and in the exhaust and diesel particulate filter systems. The characterization of soot morphology and nanostructure is necessary to understand the soot formation and oxidation processes. Furthermore, understanding these characteristics is important because they affect the aerodynamic behavior of diesel particulate matter in the exhaust system, diesel particulate filter systems, and the environment. This study aims to investigate the influence of fuel oxygen content and engine operating modes on the morphology and nanostructure of soot particles. The oxygen content in the fuel was varied from 0% to 4.32% and 6.48% by using diesel and 20 and 30% butanol blends (by volume) with diesel. As the oxygen content increased, corresponding nanostructure characteristics fringe length and separation distance increased and fringe tortuosity decreased. Changes to the nanostructure properties will have an influence on the operation of diesel particle filters, particularly during the regeneration processes. However, other characteristics such as the influence of these fuels on particle mass and number emissions, performance parameters, and gaseous emissions will also have a significant influence on implementing these fuels in modern diesel vehicles.
AB - In order to comply with strict emission standards, a reduction in diesel particle matter emissions can be addressed by minimizing particle formation and by optimizing particle oxidation in the combustion chamber and in the exhaust and diesel particulate filter systems. The characterization of soot morphology and nanostructure is necessary to understand the soot formation and oxidation processes. Furthermore, understanding these characteristics is important because they affect the aerodynamic behavior of diesel particulate matter in the exhaust system, diesel particulate filter systems, and the environment. This study aims to investigate the influence of fuel oxygen content and engine operating modes on the morphology and nanostructure of soot particles. The oxygen content in the fuel was varied from 0% to 4.32% and 6.48% by using diesel and 20 and 30% butanol blends (by volume) with diesel. As the oxygen content increased, corresponding nanostructure characteristics fringe length and separation distance increased and fringe tortuosity decreased. Changes to the nanostructure properties will have an influence on the operation of diesel particle filters, particularly during the regeneration processes. However, other characteristics such as the influence of these fuels on particle mass and number emissions, performance parameters, and gaseous emissions will also have a significant influence on implementing these fuels in modern diesel vehicles.
UR - http://www.scopus.com/inward/record.url?scp=85066494560&partnerID=8YFLogxK
U2 - 10.1021/acs.energyfuels.9b00368
DO - 10.1021/acs.energyfuels.9b00368
M3 - Article
AN - SCOPUS:85066494560
SN - 0887-0624
VL - 33
SP - 5632
EP - 5646
JO - Energy and Fuels
JF - Energy and Fuels
IS - 6
ER -