Improvement in ignitability via production of active species using low temperature plasma

Research Project

Project/Area Number	22860013
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Thermal engineering
Research Institution	Chiba University
Principal Investigator	KUBOYAMA Tatsuya 千葉大学, 大学院・工学研究科, 特任助教 (80578831)
Project Period (FY)	2010 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥3,146,000 (Direct Cost: ¥2,420,000、Indirect Cost: ¥726,000) Fiscal Year 2011: ¥1,508,000 (Direct Cost: ¥1,160,000、Indirect Cost: ¥348,000) Fiscal Year 2010: ¥1,638,000 (Direct Cost: ¥1,260,000、Indirect Cost: ¥378,000)
Keywords	低温プラズマ / 点火 / 着火 / 内燃機関 / 希薄燃焼 / 低温プフズマ
Research Abstract	To investigate the effect of the discharge pulse pattern on the initial flame kernel growth, an optically accessible constant volume chamber was designed. Using the constant volume chamber, direct photography and schlieren photography were carried out. Also, a newly developed small-sized IES (0inductive energy storage) circuit with a semiconductor switch was employed to improve inflammability of a gasoline engine with EGR gas dilution, and a spark discharge pulse pattern was optimized for a practical usage. As a result the diluted limit with EGR gas was extended from 21% to 25% in EGR ratio at IMEP 630kPa by using the repetitive pulse discharge ignition system.

Report

(3 results)