The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines
Online ISSN : 2424-2918
2012.8
Session ID : OS4-1
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OS4-1 A Study on the Effect and Mechanism of Plasma Assisted Gasoline HCCI Combustion by Low Temperature Plasma(OS4 Plasma-assisted combustion,Organized Session Papers)
Taisuke Shiraishi
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Abstract
In this study, the findings in which the low temperature plasma technology was applied to the autoignition promotion and control at autoignition timing of the HCCI (Homogeneous Charge Compression Ignition) combustion were reported. The low temperature plasma igniter of a barrier discharge model (Barrier Discharge Igniter; BDI) with high frequency voltage (15 kHz) was provided in the top center of the combustion chamber, and the autoignition characteristics of the HCCI combustion by the low temperature plasma assistance was investigated by using single-cylinder gasoline engine. HCCI combustion with compression ratio of CR=15 was achieved by rising the intake air temperature. The combustion characteristics of baseline HCCI without discharge assistance, spark assisted HCCI, and BDI assisted HCCI were compared. The difference of combustion characteristics when changing the discharge onset timing of BDI was considered. And the mechanism of autoignition promotion for HCCI by low temperature plasma was considered.
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© 2012 The Japan Society of Mechanical Engineers
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