摘要
通过试验研究了混合器对车用柴油机尿素选择催化还原系统性能的影响。试验结果表明,排气流量和排气管径对压力损失影响较大,而温度的影响相对较小;安装混合器不但促进还原剂与排气的混合,而且使还原剂的分布更加均匀,从而提高了NOx的转化率,最大提高约10%。
An experimental study on the effects of mixer on the performance of urea-selective catalytic reduction（SCR） system in vehicle diesel engine is conducted.The test results indicate that the exhaust flow rate and the diameter of exhaust pipe have significant influence on pressure loss while the effect of exhaust temperature is relatively less.Adding mixer on the engine not only improve the mixing of reductant with exhaust gas,but also make the distribution of reductant more even,thus increasing the conversion rate of NOx by up to 10%.
出处
《汽车工程》
EI
CSCD
北大核心
2011年第4期303-308,共6页
Automotive Engineering
