チムニを有する沸騰自然循環ループの不安定流動に関する研究　第４報　　高圧時の安定性とチムニ内熱水力挙動の解析的検討

DOI Web Site Web Site 参考文献12件

書誌事項

タイトル別名
  • A Study on Thermo-Hydraulic Instability of Boiling Natural Circulation Loop with a Chimney. 4th Report. An Analytical Consideration of the Stability and Thermo-Hydraulic Characteristics in the Chimney in High Pressure.
  • チムニ オ ユウスル フットウ シゼン ジュンカン ループ ノ フアンテイ リュウドウ ニ カンスル ケンキュウ ダイ4ホウ コウアツジ ノ アンテイセイ ト チムニ ナイ ネッスイリョク キョドウ ノ カイセキテキ ケントウ

この論文をさがす

抄録

Thermo-hydraulic instabilities of a boiling natural circulation loop with a chimney under high pressure were investigated using linear stability analysis. Drift-flux model was used for two-phase flow model. The instability regions as well as the thermo-hydraulic characteristics in the chimney such as wavy feature were examined, which were compared with the characteristics in low pressure. Instability could occur when exit quality was relatively low, which was the same manner as the characteristics in low pressure. In high-pressure, void was generated near channel exit, and void wave propagated in the chimney. In low pressure, steam was generated only near the chimney exit due to gravity induced flashing, and single-phase enthalpy wave, that is, temperature wave propagated in single-phase flow region. Though flow could be very stable in the high pressure and high power condition, the decay ratio of higher mode could be larger than that of lower mode.

収録刊行物

参考文献 (12)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ