低毒性イオン液体推進剤の微粒化特性に関する実験的研究

Material type: 文書・図像類

Author: 伊藤, 尚義ほか

Publisher: 宇宙航空研究開発機構(JAXA)

Publication date: 2023-02-03

Material Format: Digital

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Note (General)：: ヒドラジンに替わる低毒性推進剤の開発のため，HAN (Hydroxyl Ammonium Nitrate)またはADN(Ammonium Dinitramide)を基剤とした高エネルギー液体に着目し研究を行った．これらの液体を推進剤として実用化するためには燃焼効率の向上が求められるため，渦巻噴射弁を...

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Material Type: 文書・図像類
Title: 低毒性イオン液体推進剤の微粒化特性に関する実験的研究
Author/Editor: 伊藤, 尚義
黒田, 彬斗
尾松, 来基
半澤, 佳祐
勝身, 俊之
門脇, 敏
ITO, Hisayoshi
KURODA, Yoshito
OMATSU, Raiki
HANZAWA, Keisuke
KATSUMI, Toshiyuki
KADOWAKI, Satoshi
Author Heading: 伊藤, 尚義
黒田, 彬斗
尾松, 来基
半澤, 佳祐
勝身, 俊之
門脇, 敏
ITO, Hisayoshi
KURODA, Yoshito
OMATSU, Raiki
HANZAWA, Keisuke
KATSUMI, Toshiyuki
KADOWAKI, Satoshi
Publication, Distribution, etc.: 宇宙航空研究開発機構(JAXA)
Publication Date: 2023-02-03
Publication Date (W3CDTF): 2023-02-03
Alternative Title: Experimental Study on Atomization Characteristics of Energetic Ionic Liquid for Green Monopropellant of RCS Thruster
Periodical title: 宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 令和4年度研究成果報告書 = JAXA Research and Development Report: Technical Report of The Research Activity for High Energy Materials (2022)
No. or year of volume/issue: JAXA-RR-22-006
Volume: JAXA-RR-22-006
Pages: 25-28
ISSN (Periodical Title): ISSN : 2433-2216
Text Language Code: jpn
Subject Heading: Hydroxyl Ammonium Nitrate
Ammonium Dinitramide
Atomization
Swirl injector
Target Audience: 一般
Note (General): ヒドラジンに替わる低毒性推進剤の開発のため，HAN (Hydroxyl Ammonium Nitrate)またはADN(Ammonium Dinitramide)を基剤とした高エネルギー液体に着目し研究を行った．これらの液体を推進剤として実用化するためには燃焼効率の向上が求められるため，渦巻噴射弁を用いた微粒化により反応性を向上させることを目的とした．従来得られていた知見より，これらの高エネルギー液体は粘性が高く微粒化は難しいとされている．そこで本研究では，粘度および表面張力を実測し，1-10N クラスのスラスタを想定した条件での噴射実験を行った．さらに，結果を種々の無次元数で整理することによって，低毒性推進剤の微粒化に求められる条件を検討した．
To replace hydrazine, which is a deadly toxic monopropellant for RCS (Reaction control system), research on green propellants is vitalized in the world, and green propellant-based HAN (Hydroxyl Ammonium Nitrate) or ADN (Ammonium Dinitramide) is considered to be promising candidates. Since the improvement of combustion characteristics is strongly required to achieve the practical use of green propellant, we focused on the atomization of green propellant by a swirl injector. According to the previous study, it was found that green propellant candidates are hard to be atomized because of the highly viscous liquid. In this study, we measured the viscosity and surface tension of green propellant candidates to derive the Reynolds number, Weber number, and Ohnesorge number, which are important to characterize the atomization state. We also conducted injection tests under the condition assuming 1-10 N class RCS, to acquire the state of injection flow and to inspect atomization characteristics of energetic ionic liquid. Then, we discussed suitable physical properties such as viscosity and surface tension by using dimensionless numbers to propose promising green propellants.
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
資料番号: AA2230017006
レポート番号: JAXA-RR-22-006
DOI: 10.20637/00049038
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ