氢内燃机NO_x排放特性的试验研究  

Experimental Study on NOx Emissions of Hydrogen Internal Combustion Engine

作　　者：孙柏刚[1] 赵建辉[1] 赵陆明[1] 刘福水[1] 胡铁刚 杨柏林 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]长安汽车股份有限公司,重庆400023

出　　处：《内燃机工程》2011年第2期53-56,共4页Chinese Internal Combustion Engine Engineering

基　　金：国家"八六三"高技术研究发展计划"节能与新能源汽车"重大项目(2006AA11A1B6)

摘　　要：以一台2.0 L氢内燃机为测试对象,对其排放及燃烧特性进行了试验研究,探讨了NOx随当量比Φ、点火提前角的变化关系。试验结果表明:在Φ=0.88时,NOx生成量达到最大;在Φ<0.88时,NOx的生成量随Φ的增加而增加;在0.88<Φ<1.2时,NOx生成量随Φ的增加急剧减少;当混合气比较稀薄时,点火提前角对NOx的贡献率相对较小。研究结果可用于氢内燃机稀薄燃烧技术的开发,可有效降低氢内燃机NOx排放。Experimental study was carried out on the characteristics of combustion and NOx emissions of a 2.0 L hydrogen internal combustion engine（HICE）.The correlations between NOx emissions and both equivalence ratio Φ and ignition timing were examined.Experimental results show： at Φ=0.88 the NOx emissions reach maximum value;when Φ is below 0.88 the NOx emissions increase with Φ increasing and when Φ is in the range of 0.88 to 1.2 the NOx emissions decrease quickly with Φ increasing.For lean mixture the effect of ignition timing on NOx formation is relatively small.The achievements are useful to development of HICE lean combustion technique to reduce effectively its NOx emissions.

关 键 词：内燃机 氢内燃机 NOX排放 点火时刻 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]