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Onboard Cryogenic Liquid-Propellant Subcooler Based on Thermodynamic Vent for Upper-Stage Propulsion System
http://hdl.handle.net/2237/0002010824
http://hdl.handle.net/2237/00020108246d63d1fb-e62f-41db-9fbe-13af2325ed3f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
paper_JSR_rev1_proof.pdf (3.9 MB)
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| アイテムタイプ | itemtype_ver1(1) | |||||||||
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| 公開日 | 2024-05-22 | |||||||||
| タイトル | ||||||||||
| タイトル | Onboard Cryogenic Liquid-Propellant Subcooler Based on Thermodynamic Vent for Upper-Stage Propulsion System | |||||||||
| 言語 | en | |||||||||
| 著者 |
Banno, Yuya
× Banno, Yuya
× Kinefuchi, Kiyoshi
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Subcooling of cryogenic liquid propellants offers significant advantages for launch vehicles. Liquid subcooling can reduce the extent of cavitation generation in turbopumps, which provides advantages for upper-stage engine reignition in orbit. Additionally, liquid-propellant subcooling densifies the liquid, which can reduce the propellant tank volume and increase launch capability when it is applied during the propellant-filling phase on the ground. Here, a cryogenic propellant subcooling system derived from thermodynamic vent system (TVS) concepts is proposed. In contrast to prior approaches with TVS, the proposed method only focuses on the liquid subcooling and only requires the installation of a heat exchanger at the tank bottom, making it easily applicable to conventional upper stages and enhancing launch capability. First, ground tests were conducted using liquid nitrogen. We introduced energy efficiency to evaluate the subcooler performance, and an optimum point was found for the coolant supply pressure and Joule–Thomson orifice diameter. To investigate the advantages of the proposed method, a theoretical model for the subcooling process before engine reignition in orbit was developed based on experimental observation. The model assuming liquid hydrogen demonstrated an improved weight penalty in the proposed method compared to the conventional vent/pressurization method. A study that quantitatively addresses the enhancement of launch capability through TVS-induced liquid subcooling is unprecedented, paving the way for a new cryogenic propulsion system. | |||||||||
| 言語 | en | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Published Online:30 Jan 2024 | |||||||||
| 言語 | en | |||||||||
| 出版者 | ||||||||||
| 出版者 | American Institute of Aeronautics and Astronautics | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||||||
| タイプ | journal article | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | AM | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | isVersionOf | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.2514/1.A35888 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | PISSN | |||||||||
| 収録物識別子 | 0022-4650 | |||||||||
| 書誌情報 |
en : Journal of Spacecraft and Rockets 巻 61, 号 4, p. 919-929, 発行日 2024-07 |
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