Item type |
紀要論文 / Departmental Bulletin Paper(1) |
公開日 |
2015-03-26 |
タイトル |
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タイトル |
空気予冷却システム(プリクーラ)の開発研究(第2報:プリクーラの着霜に関する研究) |
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言語 |
jpn |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
その他のタイトル(英) |
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その他のタイトル |
Development Study of the Pre-Cooling System of ATREX Engine (2nd Report : Study of the Frost Formation on the Precooler) |
著者 |
佐藤, 哲也
棚次, 亘弘
原田, 賢哉
小林, 弘明
Sato, Tetsuya
Tanatsugu, Nobuhiro
Harada, Kenya
Kobayashi, Hiroaki
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著者所属 |
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宇宙科学研究所 |
著者所属 |
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宇宙科学研究所 |
著者所属 |
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航空宇宙技術研究所 |
著者所属 |
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宇宙科学研究所 |
著者所属(英) |
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en |
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Institute of Space and Astronautical Science (ISAS) |
著者所属(英) |
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en |
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Institute of Space and Astronautical Science (ISAS) |
著者所属(英) |
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en |
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National Aerospace Loboratory |
著者所属(英) |
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en |
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Institute of Space and Astronautical Science (ISAS) |
出版者 |
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出版者 |
宇宙科学研究所 |
出版者(英) |
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出版者 |
Institute of Space and Astronautical Science |
書誌情報 |
宇宙科学研究所報告. 特集: ATREXエンジンの研究開発
巻 46,
p. 95-120,
発行日 2003-03
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抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
This paper describes the study of frost formation on the precooler tube surfaces. Frosting rates are quantitatively shown by experimental and numerical methods, which depends on the temperature and humidity of the air flow as well as the cooling wall temperature. The effectiveness of a method to improve the precooler performance under frosting condition was investigated by experiments using a sub-scale heat exchanger model. Addition of a methanol proved to be most effective compared with other possible substances in both cases of lower and higher cooling wall temperature. Then the effectiveness of the methanol addition was ascertained for the practical condition that means the same tube configuration and flow velocity as the precooler designed for the ATREX engine firing test model. The result showed that the addition of the same quantity as the water vapor could restrain the frost layer from choking the flow in the duration of 300 seconds, which is sufficient time for precooler operation. The required methanol mass along the ATREX engine flight path was estimated to be less than 3 % of fuel hydrogen on board. Accordingly, the method came to be promising candidate for practical application. |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0285-9920 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00354485 |
資料番号 |
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内容記述タイプ |
Other |
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内容記述 |
資料番号: SA0200117000 |