JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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Other TitleThe proof-model of a Space Propulsion & Power System Using Water-Energy Cycle
Author(jpn)都木 恭一郎; 橋本 保成; 田中 孝治; 藤田 孝; 石井 忠司
Author(eng)Toki, Kyoichiro; Hashimoto, Yasunari; Tanaka, Koji; Fujita, Takashi; Ishii, Tadashi
Author Affiliation(jpn)東京農工大学; 宇宙航空研究開発機構 宇宙科学研究本部; 宇宙航空研究開発機構 宇宙科学研究本部; AEC藤田; 次世代技術
Author Affiliation(eng)Tokyo University of Agriculture and Technology; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science; AEC Fujita; Jisedaitech L. P.
Issue Date2006-06
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
Publication title第25回宇宙エネルギーシンポジウム 平成17年度
The Twenty-fifth Space Energy Symposium March 10, 2006
Start page64
End page68
Publication date2006-06
AbstractOur 'Space Propulsion and Power System Using Water-Energy-Cycle' stores hydrogen and oxygen electrolyzed from water by solar cells during sunshine period, and as the reverse cycle, these gases provided into fuel cells generate electrical power and water during sunshade period. The stored hydrogen and oxygen are also usable as rocket propellants, and furthermore, the water and oxygen are available for the life support system at emergencies of manned space activities. Our study is to design a propulsion & power system originated from safe and non-toxic water that is one of the simplest compound on Earth, and to perform ground-based experimental testing toward a sub-scale model. The performance verification in the Space Station is necessary for the end but based upon the fundamental researches so far, we estimate the flight performances from testing such as optimization of single-cell performance, configuration of electrolysis and fuel-cell (reversible single cell or two separate cells), rocket engine combustion in vacuum, overall systems checkout, and weightlessness simulation (on the tri-axially relatable test-stand).
Keywordswater energy cycle; manned space activity; spacecraft propulsion; life support system; water; electrolysis; electrolyte; hydrogen oxygen fuel cell; hydrogen; oxygen; 水エネルギーサイクル; 有人宇宙活動; 宇宙機推進; 生命維持システム; 水; 電解; 電解質; 水素-酸素燃料電池; 水素; 酸素
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会

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