TY - JOUR
T1 - Influence of Small-Molecule Oxygenous Fuel on Soot Precursor from n-Heptane Combustion
AU - Wang, Ying
AU - Ke, Xichun
AU - Guo, Chunlan
AU - Shen, Zhenxing
N1 - Publisher Copyright:
© 2017, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
PY - 2017/3/10
Y1 - 2017/3/10
N2 - An oxygenous fuel/n-heptane/PAH ignition combustion model was built with chemical kinetic software in order to investigate the polycyclic aromatic hydrocarbon (PAH) formation during the oxygenous fuel/n-heptane combustion process and deeply understand the effect of oxygenated fuel on the formation of diesel soot. Under the condition of similar diesel engine, the study on the effects of adding small-molecule oxygenous fuel such as DME, methanol and ethanol into n-heptane on soot precursor-aromatics was carried out. The research results showed that with an increase of oxygen content in fuel, the concentrations of incomplete combustion intermediate products such as C2H2, C2H4 and aromatics are decreased. Although DME has the same oxygen content as ethanol, there are different fuel carbon reaction paths between these two fuels due to the different position of oxygen atom in the molecular structure. Therefore, DME has greater effectiveness on PAH evolution than ethanol. Although methanol has the same oxygen functional group as ethanol, methanol has greater effectiveness on PAH evolution than ethanol because methanol molecules do not have C-C structure.
AB - An oxygenous fuel/n-heptane/PAH ignition combustion model was built with chemical kinetic software in order to investigate the polycyclic aromatic hydrocarbon (PAH) formation during the oxygenous fuel/n-heptane combustion process and deeply understand the effect of oxygenated fuel on the formation of diesel soot. Under the condition of similar diesel engine, the study on the effects of adding small-molecule oxygenous fuel such as DME, methanol and ethanol into n-heptane on soot precursor-aromatics was carried out. The research results showed that with an increase of oxygen content in fuel, the concentrations of incomplete combustion intermediate products such as C2H2, C2H4 and aromatics are decreased. Although DME has the same oxygen content as ethanol, there are different fuel carbon reaction paths between these two fuels due to the different position of oxygen atom in the molecular structure. Therefore, DME has greater effectiveness on PAH evolution than ethanol. Although methanol has the same oxygen functional group as ethanol, methanol has greater effectiveness on PAH evolution than ethanol because methanol molecules do not have C-C structure.
KW - N-heptane
KW - Oxygenous fuel
KW - Polycyclic aromatic hydrocarbon
UR - https://www.scopus.com/pages/publications/85022190881
U2 - 10.7652/xjtuxb201703007
DO - 10.7652/xjtuxb201703007
M3 - 文章
AN - SCOPUS:85022190881
SN - 0253-987X
VL - 51
SP - 38-42 and 79
JO - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
JF - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
IS - 3
ER -