| Project/Area Number |
25630072
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | Waseda University |
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Principal Investigator |
NAITOH Ken 早稲田大学, 理工学術院, 教授 (30323174)
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| Co-Investigator(Renkei-kenkyūsha) |
SAGARA Shinichi 九州工業大学, 工学(系)研究科, 准教授 (50235199)
SATO Shigeru 独立行政法人宇宙航空研究開発機構, 宇宙輸送ミッション本部, 主幹研究員 (10358559)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| 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: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 熱機関 / 熱効率 / 熱流体力学 / 燃焼実験 / シミュレーション / サイクル理論 / エンジン / 燃焼 / 高効率 / 低騒音 / 自動車 / 航空機 / 発電 |
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| Outline of Final Research Achievements |
Thermo-fluid dynamic theory, three-dimensional computations, and combustion experiments of new engines based on supermulti-jets colliding with pulse show the two following results. (1)Theory and computations: Supermulti-jets colliding with pulse bring auto-ignition of gasoline and high thermal efficiencies over 50%. This is because the supermulti-jets colliding has an effect of encasing the burned gas of high temperature around the chamber center, which results in very less hot gas on the chamber walls. (2)Combustion experiments: combination of point compression due to jets injected intake nozzles and piston compression having relatively low compression ratio actually indicated auto-ignition of gasoline and thermal efficiency potential comparable to that of traditional gasoline engines. Thus, the above results indicate the efficiency of the new compression-combustion principle based on the supermulti-jets colliding with pulse for various purposes.
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