Associate for Education and Public Outreach
基本情報
- 所属
- 国立研究開発法人宇宙航空研究開発機構 宇宙科学研究所
- 学位
- 博士（工学）(2023年3月 東京大学)
- J-GLOBAL ID
- 202101009520910299
- researchmap会員ID
- R000015405
研究キーワード
4研究分野
1経歴
2-
2023年4月 - 現在
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2020年3月 - 2023年3月
学歴
3-
2020年4月 - 2023年3月
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2018年4月 - 2020年3月
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2014年4月 - 2018年3月
論文
3-
Combustion Science and Technology 195(10) 1-17 2021年12月28日
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 64(4) 223-233 2021年
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Flight Model Development and Ground Demonstration of Water Resistojet Propulsion System for CubeSatsTRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 63(4) 141-150 2020年The University of Tokyo has proposed a water resistojet thruster with a high certainty of liquid-vapor separation and low power consumption. In this propulsion system, liquid water is periodically vaporized in a pulsating manner to generate thrust. A vaporization chamber with a labyrinth-shaped flow path catches droplets using their surface tension to separate the liquid and vapor, and the droplets vaporize under normal temperature to reduce the input power by reusing the heat from the surrounding components. In this study, we designed and fabricated a flight model of the proposed propulsion system for 6U CubeSat and evaluated the performance of this propulsion system, including the control method. The results confirm the concept of the proposed liquid-vapor separation method and its low power consumption. Moreover, we revealed the relationships between the vaporizing duty cycle, input power, and thrust.
講演・口頭発表等
13-
2020年1月令和元年度宇宙輸送シンポジウム（2020年1月16日-17日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)）, 相模原市, 神奈川県資料番号: SA6000147035レポート番号: STCP-2019-035
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AIAA Propulsion and Energy 2020 Forum 2020年The combustion of aluminum and magnesium is an attractive power source. Many practical tests have been conducted as a composite propellant of metal powder and water. However, because the safety and the ease of handling are required to be launched into space, it is desirable that nonpowder metal is used as fuel and stored separately from oxidizer. Heat loss has a significant impact on the combustion of bulk metals. Though combustion behavior of bulk metals differs from that of powders, little has been reported on the combustion of bulk metal with water. This study, first, considered two types of ignition method: Joule heating and induction heating and investigated their feasibility in the scale of small spacecraft. Then, two types of experiments were carried out. The former is the wire combustion experiment using Joule heating. This experiment revealed that the characteristics of millimeter scale bulk metal combustion with water vapor. The latter experiment is the induction heating of a magnesium rod as an initial test of the ignition system for centimeter scale fuel. This test demonstrated the heating of the metal and identified the rooms for improvement to ignite the fuel.
所属学協会
1-
2017年4月 - 現在
共同研究・競争的資金等の研究課題
2-
日本学術振興会 科学研究費助成事業 特別研究員奨励費 2023年4月 - 2026年3月
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日本学術振興会 科学研究費助成事業 特別研究員奨励費 2020年4月 - 2023年3月
