| Project/Area Number |
25820059
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | University of Fukui |
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Principal Investigator |
SAKAI Yasuyuki 福井大学, 工学(系)研究科(研究院), 講師 (70511088)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 自着火 / 低温酸化 / 反応機構解析 / 燃焼化学 / オクタン価 / セタン価 |
|---|
| Outline of Final Research Achievements |
Knocking in spark-ignition engines results from the complex interactions among heat release by chemical reactions, heat loss to the cylinder wall, and turbulent flows. This study aimed to investigate the auto-ignition mechanism of hydrocarbon fuels by using detailed chemical kinetic models. It was found that the reactivity of alkylperoxy radicals (ROO), which play important role in the oxidation of hydrocarbon fuels, is a function of the chain length and position of tertiary and quaternary carbon atoms. These trends make it possible to classify alkylperoxy radicals by their chemical structures, and suggest a reduced low-temperature oxidation chemistry.
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