摘要
通过试验研究，考察了废气再循环加富氧进气同时控制ＮＯｘ和碳烟排放的可行性。试验中通过逐步增加ＣＯ２及Ｏ２流量，查明了进气成份变化对ＮＯｘ、碳烟、ＣＯ、ＨＣ等有害排放物以及有效燃油消耗率ｂｅ、平均有效压力ｐｅ、滞燃期、绝热指数的影响，然后用ＫＩＶＡ程序对燃烧火焰温度和ＮＯ浓度进行了模拟计算。结果表明，ＣＯ２加富氧进气可同时有效地抑制ＮＯｘ和碳烟的排放。
This paper presents the potential of controlling NO x and smoke emissions by means of EGR and intake oxygen enrichment.By adding CO 2 and O 2 gas in the intake,the effect of variation of intake gas composition on NO x ,smoke,CO,HC emissions, b e, p e,ignition delay and specific heat ratio was investigated.The KIVA code was further used to calculate flame temperature and NO concentration.The mechanism of combustion and pollutants formation was discussed.The result showed that CO 2 and intake oxygen enrichment could decrease NO x and smoke simultaneously,with some deterioration of b e.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1998年第4期399-404,共6页
Transactions of Csice
