On-orbit Performance Evaluation of AQUARIUS: a Water Resistojet Propulsion System during Initial Flight Operation of a 6U CubeSat EQUULEUS
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- SEKINE Hokuto
- Department of Aeronautics and Astronautics, The University of Tokyo
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- ATAKA Yasuho
- Department of Aeronautics and Astronautics, The University of Tokyo
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- MORIAI Isamu
- Department of Aeronautics and Astronautics, The University of Tokyo
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- FUJIMORI Aoma
- Department of Aeronautics and Astronautics, The University of Tokyo
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- AKIYAMA Mariko
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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- MUROHARA Masaya
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KOIZUMI Hiroyuki
- Department of Aeronautics and Astronautics, The University of Tokyo Department of Advanced Energy, The University of Tokyo
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- KAKIHARA Kota
- ArkEdge Space Inc.
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- SHIRASU Kento
- Department of Aeronautics and Astronautics, The University of Tokyo
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- TAKASAKI Daigo
- Department of Aeronautics and Astronautics, The University of Tokyo
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- MINEMATSU Ryo
- Department of Aeronautics and Astronautics, The University of Tokyo
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- MATSUURA Masayuki
- Department of Advanced Energy, The University of Tokyo
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- ARAI Ten
- Department of Advanced Energy, The University of Tokyo
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- TSUCHIYA Yuto
- Department of Aeronautics and Astronautics, The University of Tokyo
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- AIZAWA Naoto
- Department of Advanced Energy, The University of Tokyo
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- NOGUCHI Mizuki
- Department of Advanced Energy, The University of Tokyo
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- MATSUSHITA Shuhei
- Department of Aeronautics and Astronautics, The University of Tokyo ArkEdge Space Inc.
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- SHIBUKAWA Toshihiro
- ArkEdge Space Inc.
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- TOMA Kazuki
- Department of Aeronautics and Astronautics, The University of Tokyo
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- TAKASHIMA Kazuki
- Department of Aeronautics and Astronautics, The University of Tokyo
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- OGINO Kosuke
- Department of Aeronautics and Astronautics, The University of Tokyo
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- KUSANO Yuki
- Department of Aeronautics and Astronautics, The University of Tokyo
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- NAKAJIMA Shintaro
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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- FUSE Ryota
- Department of Aeronautics and Astronautics, The University of Tokyo
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- MIYOSHI Kota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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- ISHIKAWA Akihiro
- Department of Aeronautics and Astronautics, The University of Tokyo ArkEdge Space Inc.
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- KAWABATA Yosuke
- Department of Aeronautics and Astronautics, The University of Tokyo
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- MOCHIZUKI Tomoki
- Department of Aeronautics and Astronautics, The University of Tokyo
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- CHIKAZAWA Takuya
- Department of Advanced Energy, The University of Tokyo
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- FUNASE Ryu
- Department of Aeronautics and Astronautics, The University of Tokyo Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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説明
<p>A 6U CubeSat EQUULEUS (EQUilibriUm Lunar-Earth point 6U Spacecraft) successfully executed an orbit transfer using a water-propelled propulsion system in deep space for the first time using AQUARIUS (AQUA ResIstojet propUlsion System), a water resistojet propulsion system. We report on-orbit performance analysis of AQUARIUS in its initial flight operation. AQUARIUS employed a distinct water droplet vaporization structure for efficient gas-liquid separation and a power-saving strategy for the large latent heat of water. The time-averaged thrust observed in two on-orbit operations using two thruster heads was approximately 6.0 mN, with a specific impulse of 91.0 s and a power consumption of less than 14 W. The thrust-to-power ratio increased with the temperature difference between the vaporization chamber and the adjacent communication device. This indicates that the necessary power for the vaporization of the water was effectively compensated for by the heat from the surroundings owing to the appropriate thermal design of EQUULEUS. The thrust coefficient efficiency was found to be approximately 0.86, which was higher than in the ground test (∼0.66). This is possibly due to the extremely low back pressure on orbit that mitigates the nozzle efficiency reduction due to low Reynolds number flows.</p>
収録刊行物
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 67 (5), 274-284, 2024
一般社団法人 日本航空宇宙学会
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詳細情報 詳細情報について
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- CRID
- 1390301385916446080
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- ISSN
- 21894205
- 05493811
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可