Fundamental research of a new compression-combustion engine of ultimate thermal efficiency
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 |
Research Field |
Thermal engineering
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Research Institution | Waseda University |
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 |
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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Report
(3 results)
Research Products
(26 results)
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[Journal Article] Simultaneous attainment of light-weight, high-efficiency, and low noise: by the supermultijet-twister engine working from startup to hypersonic scram mode2013
Author(s)
Ken Naitoh, Mikiya Marui, and Kouichi Ishida, Yoshitaka Sagara, Taro Tamura2, Dai Shimizu, Shouhei Nonaka, Tomoaki Kubota, Taiki Hashimoto, Yoshiyuki Nojima, Masato Tanaka
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Journal Title
AIAApaper
Volume: 2013-3011
Pages: 1-12
DOI
Related Report
Peer Reviewed
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