A fundamental research on the combustion of a stratified hydrogen charge by plasma-jet ignition source
| Project/Area Number |
61550164
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Thermal engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
ONO Shinsuke Prof. Kyushu University, 工学部, 教授 (80037738)
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| Co-Investigator(Kenkyū-buntansha) |
KAWANO Hideaki Assistant Kyushu University, 工学部, 助手 (30037915)
HANADA Kunihiko Assistant Kyushu University, 工学部, 助手 (30037874)
MURASE Eiichi Associate Prof. Kyushu University, 工学部, 助教授 (60150504)
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| Project Period (FY) |
1986 – 1987
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| Project Status |
Completed (Fiscal Year 1987)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1987: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1986: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Internal Combustion Engine / Lean Combustion / Stratified Charge / Hydrogen / Plasma / Jet,Ignition / 点火エネルギー / 発火(点火, 着火) / プラズマジェット / 希薄燃焼発火 / 拡散 |
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| Research Abstract |
This project was planned to make a fundamental research for the practical use of a stratified hydrogen charge combustion in a spark ignition engine. Because of a rapid dilution of hydrogen jet by the ambient gas, many problems come about such as an unreliable ignition, an unstable combustion, a decrease in combustion efficiency, etc. In this research, a plasma-jet ignition system was applied for the reliable ignition and the efficient combustion of the fuel mixture. The ignition system was examined with a mechanical structure of igniter, a shape of combustion space, and a quantity of energy supplied. Results showed ; 1) a degree of freedom for the optimisation of this type of ignition system was high since the injection speed, the direction, and the energy supply to the jet were easy to adjust, 2) a main burning timing was correctly adjustable because of a rapid formation of initial flame zone.
In the next place, the characteristics of the hyprogen jet combustion were investigated in relation with the timing and the position of ignition in the jet, and also investigated on the application of the plasma-jet ignition for the flowing combustion system. As a results, it was made clear that the timing and the place of ignition strongly depend on the size of a jet diameter and the injection duration. And further investigation has been made on the suitable application of the plasma-jet ignition system for the fuel jet combustion and for the swirling combustible mixtures.
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Report
(2 results)
Research Products
(14 results)
