Non-polar organic compounds, volatility and oxidation reactivity of particulate matter emitted from diesel engine fueled with ternary fuels in blended and fumigation modes.
Non-polar organic compounds, volatility and oxidation reactivity of particulate matter emitted from diesel engine fueled with ternary fuels in blended and fumigation modes.
复制标题
DOI：
10.1016/j.chemosphere.2020.126086
复制
发表时间：
2020-02
期刊：
影响因子：
8.8
通讯作者：
Meisam Ahmadi Ghadikolaei;K. Yung;C. Cheung;S. Ho;P. Wong
中科院分区：
文献类型：
--
作者：
Meisam Ahmadi Ghadikolaei;K. Yung;C. Cheung;S. Ho;P. Wong
研究了柴油机在四种工况下，不同燃烧方式对颗粒物相多环芳烃(PAHs)和正构烷烃(C16-C30)以及颗粒物(PM)挥发度和氧化活性的影响。对柴油模式、混合模式、熏蒸模式和联合熏蒸+混合(F+B)模式四种燃料模式进行了试验，柴油模式使用纯柴油，混合、熏蒸和F+B模式的燃料含量为D80B5E15，为比较它们对所考察参数的影响创造了相同的条件。结果表明，与柴油模式相比，混合模式和熏蒸模式均能降低多环芳烃(−78.4%和−31.3%)、苯并[a]芘当量(−81.7%和−38.9%)、正构烷烃(−46.5%和−21.5%)和非挥发性物质含量(−25.1%和−11.1%)，但高挥发性物质含量(12.8%和6.9%)和氧化反应率(34.0%和4.9%)分别高于柴油模式。混合方式对所考察参数的影响大于熏蒸方式。而F+B模式的效果介于混合模式和熏蒸模式之间。
The present experimental study aims to examine the impacts of various fueling modes of operation on the particle-phase polycyclic aromatic hydrocarbons (PAHs) and n-alkanes (C16–C30), and volatility and oxidation reactivity of particulate matter (PM) emitted from a diesel engine fueled with a ternary fuel (80% diesel, 5% biodiesel and 15% ethanol (D80B5E15, volume %)) under four engine operating conditions. Four fueling modes, including diesel, blended, fumigation and combined fumigation + blended (F + B) modes were tested using pure diesel fuel for diesel mode and a constant fuel content of D80B5E15 for the blended, fumigation and F + B modes to create the same condition for comparing their impacts on the parameters investigated. The average results illustrate that both blended and fumigation modes can reduce the PAHs (−78.4% and −31.3%), benzo[a]pyrene equivalent (−81.7% and −38.9%), n-alkanes (−46.5% and −21.5%) and non-volatile substance fraction (−25.1% and −11.1%), but increase the high-volatile substance fraction (12.8% and 6.9%) and oxidation reactivity rate (34.0% and 4.9%), respectively compared to those of the diesel mode. While the effect of the blended mode on the parameters investigated is stronger than the fumigation mode. And the F + B mode has the effects in between the results of the blended and fumigation modes.