4.7 Article

Effect of cetane coupled injection parameters on diesel engine combustion and emissions

期刊

FUEL
卷 319, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2022.123714

关键词

CN; Fuel injection parameters; Combustion; Emissions; PM concentration

资金

  1. National Natural Science Foundation of China [51976077]

向作者/读者索取更多资源

The cetane number significantly affects the combustion and emissions of diesel engines. As the cetane number increases, the peak in-cylinder pressure and heat release rate decrease, while the coupling injection pressure, NOx emissions, and the number concentration and total mass of particulate matter increase.
Experiments on the effects of different cetane coupled injection parameters on diesel engine combustion and emissions were conducted on a supercharged 4-cylinder direct injection diesel engine. The results showed that with the increase of cetane number (CN), the peak in-cylinder pressure and heat release rate of fuel decrease, the coupling injection pressure increase, CO and HC emissions decrease, NOx emissions increase, the number concentration and total mass of particulate matter (PM) decrease. As the CN increases, the peak in-cylinder pressure decreases, the coupling injection timing is delayed, the peak heat release rate increases, brake thermal efficiency (BTE) decrease, brake specific fuel consumption (BSFC) increases, CO and HC emissions increase, NOx emissions decrease, and the number concentration and total mass of PM increases. Fuel characteristics and injection timing significantly influence ignition delay time and combustion duration, where CN = 53.9 fuel has no pre-injection to release heat at different injection timing, which has a more substantial impact on in-cylinder pressure and heat release rate.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据