Abstract The present study explores a comprehensive investigation of diesel blow-by, particulate matter (PM), particulate number (PN) and nitrogen oxides (NOx) emissions for cold and hot start operations in a six-cylinder, turbocharged diesel engine. A wide range of oxygenated blends of fuel-bound oxygen ranging from ~4% to ~8% (wt%) was used in the study. A reference diesel was also used for the comparison of the emissions results with those of oxygenated blends. Waste cooking biodiesel and an oxygenate, diethylene glycol dimethyl ether (diglyme) having three times higher cetane number than diesel and high fuel-bound oxygen, was used to make the oxygenated blends for examining the effect of fuel oxygen on diesel blow-by, PM, PN and NOx emissions. Carbon monoxide (CO), total unburned hydrocarbon (THC) and carbon dioxide (CO2) emissions were not targeted in this investigation. Fuel energy rate, exergy rate and exergetic cost were also investigated in this study. The experimental results show, blow-by, both PM and PN emissions were reduced significantly with a penalty of NOx emissions with oxygenated blends compared to diesel fuel during both cold and hot start operations. The energy rate, exergy rate and exergetic cost with oxygenated blends reveal insignificant variations relative to diesel.

中文翻译：

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使用含氧燃料的涡轮增压柴油发动机在冷启动和热启动运行期间显着减少窜气和颗粒排放

摘要 本研究探讨了对六缸涡轮增压柴油发动机冷启动和热启动操作时柴油窜气、颗粒物 (PM)、颗粒数 (PN) 和氮氧化物 (NOx) 排放的综合调查。研究中使用了范围从 ~4% 到 ~8% (wt%) 的燃料结合氧的各种含氧混合物。参考柴油也用于比较排放结果与含氧混合物的排放结果。使用废弃的蒸煮生物柴油和一种含氧化合物，二甘醇二甲醚（二甘醇二甲醚）的十六烷值比柴油高三倍，燃料结合氧高，用于制造含氧混合物，以检查燃料氧对柴油窜气、PM 的影响, PN 和 NOx 排放。一氧化碳 (CO), 未燃烧碳氢化合物 (THC) 和二氧化碳 (CO2) 排放总量不是本次调查的目标。本研究还对燃料能量率、火用率和火用成本进行了调查。实验结果表明，在冷启动和热启动操作期间，与柴油燃料相比，含氧混合物的窜气、PM 和 PN 排放均显着降低，NOx 排放有所损失。含氧混合物的能量率、火用率和火用成本显示出相对于柴油的微不足道的变化。在冷启动和热启动操作期间，与柴油燃料相比，含氧混合物的 PM 和 PN 排放量均显着降低，NOx 排放量有所下降。含氧混合物的能量率、火用率和火用成本显示出相对于柴油的微不足道的变化。在冷启动和热启动操作期间，与柴油燃料相比，含氧混合物的 PM 和 PN 排放量均显着降低，NOx 排放量有所下降。含氧混合物的能量率、火用率和火用成本显示出相对于柴油的微不足道的变化。