Optical study of spray-wall impingement impact on early-injection gasoline partially premixed combustion at low engine load

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• 作者：Qinglong Tang ; Haifeng Liu ; ^{haifengliu@tju.edu.cn} ; Mingkun Li ; Mingfa Yao
• 关键词：PPC ; Spray-wall impingement ; Optical diagnostics ; PLIF ; Formaldehyde
• 刊名：Applied Energy
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：185
• 期：part_P1
• 页码：708-719
• 全文大小：4521 K
• 卷排序：185

文摘

Spray-wall impingement of gasoline PPC was studied by multiple optical diagnostics. Fuel-trapping effect was verified when spray-wall impingement happened. The combustion chamber was filled with formaldehyde when misfire happened. Flame front propagation and sequential auto-ignition coexisted in gasoline PPC. The flame expansion speed of PPC-60 case was much higher than that in SI/SACI.