Ignition enhancement of the lean and diluted mixture using a low-temperature plasma discharge

• Project/Area Number: 25820056
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thermal engineering
• Research Institution: Chiba University
• Principal Investigator: KUBOYAMA Tatsuya 千葉大学, 工学(系)研究科(研究院), 准教授 (80578831)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 点火 / 低温プラズマ / 希薄燃焼 / 内燃機関 / 非平衡プラズマ / 着火 / 希釈燃焼

Outline of Final Research Achievements

To investigate the mechanism of the ignition enhancement with the repetitive low-temperature plasma discharge, a spectroscopic measurement of the low temperature plasma was carried out. Compared to the conventional ignition system with arc discharge, more oxygen ion could be generated with the low temperature plasma. This suggests that the generation of the oxygen ion is one of the possible reasons for the ignition enhancement with the low temperature plasma discharge.