内燃机工程2017，Vol.38Issue(2)：48-53,6.DOI:10.13949/j.cnki.nrjgc.2017.02.009
Urea-SCR系统周期性喷射控制策略试验研究
Experimental Research on Periodic Injection Control Strategy for Urea-SCR System
摘要
Abstract
The phenomenon of a peak NOx conversion efficiency found in a test for NOx conversion under engine steady-state condition was analyzed theoretically.A periodic injection control strategy for a urea-SCR system was put forward based on this phenomenon to promote NOx conversion efficiency.A test was designed and the comparison was made of the proposed urea-SCR periodic injection control strategy and a commercial urea-SCR injection control strategy.The result shows the former strategy has a remarkable improvement in terms of NOx conversion efficiency, urea injection dosing, NH3 slipping, and energy efficiency to urea ratio, which has a great significance in optimizing the injection control strategy of a urea-SCR system.关键词
柴油机/urea-SCR/峰值转化效率/周期性喷射Key words
diesel engine/urea-SCR/peak conversion efficiency/periodic injection分类
能源科技引用本文复制引用
胡杰,欧文中,王天田,颜伏伍..Urea-SCR系统周期性喷射控制策略试验研究[J].内燃机工程,2017,38(2):48-53,6.基金项目
自然科学基金项目(51406140) （51406140）
