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Loss Analysis and Performance Improvement of Very Low Specific Speed Centrifugal Pumps
http://hdl.handle.net/10131/3673
http://hdl.handle.net/10131/3673133f9168-dbf3-4024-b24c-b171a90f3a74
名前 / ファイル | ライセンス | アクション |
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B-150.pdf (1.4 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 | Loss Analysis and Performance Improvement of Very Low Specific Speed Centrifugal Pumps | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Turbomachinery | |||||
キーワード | ||||||
主題 | Centrifugal Pump | |||||
キーワード | ||||||
主題 | Very Low Specific Speed | |||||
キーワード | ||||||
主題 | CFD | |||||
キーワード | ||||||
主題 | Loss Analysis | |||||
キーワード | ||||||
主題 | Performance Improvement | |||||
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 |
Kagawa, Shusaku
× Kagawa, Shusaku× Matsui, Jun× Kurokawa, Junichi× Choi, Young-do |
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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 | ||||||
Yokohama National Univ., Japan | ||||||
著者所属 | ||||||
Yokohama National Univ., Japan | ||||||
著者所属 | ||||||
Yokohama National Univ., Japan | ||||||
著者所属 | ||||||
Yokohama National Univ., Japan | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In the range of very low specific speed ns, improvement of efficiency is the most important subject in order to apply turbo machine to such a low specific speed range. The purpose of the present study is focused on the performance improvement of pump in the range of ns≦80[m,m3/min,min-1], and CFD simulation is performed to determine the reason why efficiency is very low. Moreover, in order to obtain very low specific speed impeller with high efficiency, a new type centrifugal impeller with radial grooves mounted at the back of both front and rear shrouds is simulated and tested to reveal the performance improvement. The result shows that a rapidly increase of leakage rate and disk friction rate with a decrease of ns is the main reason of law efficiency. Also, the result shows that if the leakage loss is reduced by use of Labyrinth seal at ns=25, the disk friction rapidly increases in spite of the leakage reduction and pump overall efficiency becomes only 5% higher. Moreover, the new type impeller with grooves produces very high-head compared with that of normal impeller at ns=80. | |||||
書誌情報 |
Proceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems, Yokohama, October 2006 発行日 2006 |
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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) |