CHF付近における蒸気塊底部の液層構造 A Study of Liquid-Layer Structures under Vapor Mass in CHF Region

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This paper deals with the liquid-vapor structure under vapor mass in the high heat flux region of water and R141b. The liquid-vapor structure was measured in two dimensional space by an optical fiber probe (tip diameter < 10 μm). Experimental data were analyzed with emphasis upon the void fraction, the vapor contact frequency to which the boundary of liquid-vapor contacted at the tip of the optical fiber probe, and the time series of optical probe signal with surface temperature. Time-space averaged results confirm the existence of a liquid layer and very rapid liquid-vapor phase-changes in the liquid layer in water. On the other hand, the time-space averaged results of R141b do not indicate the existence of the liquid layer. This suggests that the liquid-vapor structure of R141b differs from that of the water and the so-called macrolayer model owing to its small surface tension.

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  • 伝熱 : journal of the Heat Transfer Society of Japan  

    伝熱 : journal of the Heat Transfer Society of Japan 46(194), 15-22, 2007-01-01 

    The Heat Transfer Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018576174
  • NII書誌ID(NCID)
    AA11315621
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13448692
  • NDL 記事登録ID
    8658374
  • NDL 雑誌分類
    ZM5(科学技術--科学技術一般--工学・工業)
  • NDL 請求記号
    Z54-J404
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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