Detailed multi-dimensional study on NOx formation and destruction mechanisms in dimethyl ether/air diffusion flame under the moderate or intense low-oxygen dilution (MILD) condition

详细信息    查看全文

• 作者：Yinhu Kang^a ; ^b ; ^{cqukangyh@cqu.edu.cn} ; Shuang Wei^c ; Pengyuan Zhang^a ; ^b ; Xiaofeng Lu^d ; Quanhai Wang^d ; Xiaolong Gou^d ; Xiaomei Huang^a ; ^b ; Shini Peng^a ; ^b ; Dong Yang^a ; ^b ; Xuanyu Ji^e
• 关键词：Dimethyl ether ; Moderate or intense low-oxygen dilution ; NOx mechanism ; Reaction path analysis ; Sensitivity analysis
• 刊名：Energy
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：119
• 期：Complete
• 页码：1195-1211
• 全文大小：5983 K
• 卷排序：119

文摘

A coaxial jet burner with hot diluted co-flow was used to model the MILD condition. NOx emission process has been predicted by CFD-CRN method with detailed kinetics. NOx of DME-MILD flame was generated mainly via N2O- and NNH-intermediate pathways. NOx emission decreased with increase in co-flow temperature or oxygen concentration. Ultra-clean performance of the DME-MILD flame has been validated.