A study of a turbulent jet ignition system fueled with iso-octane: Pressure trace analysis and combustion visualization

作者：Gentz Gerald; Gholamisheeri Masumeh; Toulson Elisa^*

来源：Applied Energy, 2017, 189: 385-394.

DOI：10.1016/j.apenergy.2016.12.055

• Turbulent jet ignition
• Combustion visualization
• Ignition enhancement
• Controlled autoignition

Turbulent jet ignition is an advanced pre-chamber ignition enhancement technique for spark ignition engines that uses a discharging jet of hot combusting gases to initiate main chamber combustion. The jet acts as a distributed ignition source, leading to fast burn rates and increased combustion stability. Experiments were performed in an optically accessible rapid compression machine using liquid isooctane to study the effects of auxiliary fuel injection and ignition distribution due to nozzle geometry. A custom low-flow fuel injector was used to overcome previous limitations of using liquid fuel in the pre-chamber. Jet induced autoignition behavior was also studied in depth by considering high-speed images, pressure traces, and pressure derivative data. Published by Elsevier Ltd.

• 出版日期2017-3-1