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The flow characteristics in sixteen types of model Francis turbine and twelve types of model Francis pump-turbine of different specific speed are calculated, and mechanical and volumetric efficiencies are expressed as a function of specific speed. The influence of several dimensions of thrust balancing devices on those efficiencies are also determined together with the behaviour of axial thrust.", "subitem_description_type": "Abstract"}, {"subitem_description": "L\u0027écoulement dans les espaces avant et arrière d \u0027une roue équipée de dispositifs d\u0027équilibrage d\u0027effort, tells des tuyaux et des orifices d\u0027équilibrage, est analysé théoriquement, de manière à déterminer les efficacités volumétrique et mécanique d\u0027une turbine de modèle Francis, ainsi que d\u0027une turbo-pompe de modèle Francis. 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Accurate Determination of Volumetric and Mechanical Efficiencies and Leakage Behavior of Francis Turbine and Francis Pump-Turbine
http://hdl.handle.net/10131/3734
http://hdl.handle.net/10131/3734111bc52b-5b16-4e09-a189-67e42498616c
名前 / ファイル | ライセンス | アクション |
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B-074.pdf (1.1 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2008-09-17 | |||||
タイトル | ||||||
タイトル | Accurate Determination of Volumetric and Mechanical Efficiencies and Leakage Behavior of Francis Turbine and Francis Pump-Turbine | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Kurokawa, Junichi
× Kurokawa, Junichi× Kitahora, Takaya |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 181 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=40017976 | |||||
識別子 | 40017976 | |||||
姓名 | クロカワ, ジュンイチ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 181 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=40017976 | |||||
識別子 | 40017976 | |||||
姓名 | 黒川, 淳一 | |||||
著者所属 | ||||||
Professor, Yokohama National University, Japan | ||||||
著者所属 | ||||||
Asistant, Yokohama National University, Japan | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In order to determine the volumetric and the mechanical efficiencies of Francis turbine and Francis pump-turbine, the flow in the front and the back spaces of a runner equipped with several thrust balancing devices, such as balancing pipes and balancing holes, is analyzed theoretically. The flow characteristics in sixteen types of model Francis turbine and twelve types of model Francis pump-turbine of different specific speed are calculated, and mechanical and volumetric efficiencies are expressed as a function of specific speed. The influence of several dimensions of thrust balancing devices on those efficiencies are also determined together with the behaviour of axial thrust. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | L'écoulement dans les espaces avant et arrière d 'une roue équipée de dispositifs d'équilibrage d'effort, tells des tuyaux et des orifices d'équilibrage, est analysé théoriquement, de manière à déterminer les efficacités volumétrique et mécanique d'une turbine de modèle Francis, ainsi que d'une turbo-pompe de modèle Francis. Les caractéristiques de l'écoulement sont calculées pour seize types de turbines Francis et douze types de turbo-pompes Francis, avec différentes vitesse spécifiques, et les efficacités volumétrique et mécanique sont exprimées comme fonctions de la vittesse spécifique. L'influence sur ces efficacités de la dimension de différents dispositifs d'équilibrage est également analysée, ainsi que le comportement de l'effort axial. | |||||
書誌情報 |
Proceedings of the 17th symposium of the IAHR (Beijing) 巻 2, p. 889-990, 発行日 1994 |
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フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | International Association of Hydraulic Research (IAHR) |