DSpace university logo mark
詳細検索
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > 060 工学部・工学研究科 > 060 紀要 > 長崎大学工学部研究報告 > 第31巻 第56号 >

An Analysis of Film Boiling around a Vertical Finite-Length Cylinder


ファイル 記述 サイズフォーマット
KJ00000136515.pdf768.54 kBAdobe PDF本文ファイル

タイトル: An Analysis of Film Boiling around a Vertical Finite-Length Cylinder
著者: Yamada, Takashi / Shigechi, Toru / Momoki, Satoru / Kanemaru, Kuniyasu
発行日: 2001年 1月
引用: 長崎大学工学部研究報告 Vol.31(56) p.1-11, 2001
抄録: The film boiling heat transfer from a vertically placed cylinder of finite-length was analyzed to predict the overall heat transfer rate around the cylinder in terms of boiling curve. The overall heat transfer rate around the cylinder was determined semi-empirically by taking into account each convective heat transfer on the bottom, side and top surfaces of the cylinder. The heat transfer rate on the bottom surface was analyzed by the method similar to that developed by the authors for a downward-facing horizontal circular plate. For the vertical lateral surface of the cylinder, Bromley's model was applied and modified to accommodate the continuity of the vapor flow rate at the lower end of the vertical surface of the cylinder, where the vapor film had a finite thickness due to the vapor inflow out of the bottom surface. Berenson's correlation was adopted on the top surface. The effects of length and diameter of the cylinder on the overall heat transfer rate were discussed in terms of boiling curve and the present prediction method was compared with the experimental data obtained by quenching method. The predicted values with the boundary condition of non-slip at the vapor-liquid interface varied within 30 percent, depending on the length and diameter of the cylinder, in terms of average wall heat flux. The prediction agreed reasonably with the experimental data.
URI: http://hdl.handle.net/10069/5128
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
出現コレクション:第31巻 第56号

引用URI : http://hdl.handle.net/10069/5128

このリポジトリに保管されている文献はすべて著作権により保護されています。
印刷やダウンロード等データの複製は、調査研究・教育または学習を目的とする場合に限定されます。

 

Valid XHTML 1.0! Copyright © 2006-2015 長崎大学附属図書館 - お問い合わせ Powerd by DSpace