超高燃焼水冷却増殖炉開発のための稠密バンドル内熱流動評価 Thermal-Hydraulic Estimation in Tight-Lattice Rod Bundles for Development of the Innovative Water Reactor for Flexible Fuel Cycle

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An estimation of void fraction in tight-lattice rod bundles was carried out. Five types of void fraction experiments with 7-, 14-, 19- and 37-rod and rod-gap of 1.0 - 1.3 mm bundle and spacer effect tests were conducted ranging from 0.1 to 7.2 MPa. Extensibility of a system accident analysis code, TRAC-BF1 and one-dimensional drift-flux model to the tight-lattice rod bundle was studied. The TRAC-BF1 and the model calculated the void fraction with good agreement to the data in case of relatively high quality and void fraction region. Applicability of advanced numerical analysis codes, NASCA, ACE-3D, TPFIT to the tight-lattice rod bundle was verified by comparing with the three-dimensional void fraction data measured by neutron tomography. Tendency of the calculated void fraction by these codes and measured data was similar as same order of the measurement error. Vapor distribution and velocity profile of water and vapor were discussed based on data. The reason why a boiling transition phenomenon occurred at the center region of the 37-rod bundle test section is probably related to a lower local liquid holdup at the channel center region.

収録刊行物

  • 混相流研究の進展 : 年会講演会論文精選集 = Progress in multiphase flow research  

    混相流研究の進展 : 年会講演会論文精選集 = Progress in multiphase flow research (2008), 99-109, 2008-06-15 

    THE JAPANESE SOCIETY FOR MULTIPHASE FLOW

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各種コード

  • NII論文ID(NAID)
    10021154406
  • NII書誌ID(NCID)
    AA12204080
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    18815804
  • NDL 記事登録ID
    9553914
  • NDL 雑誌分類
    ZM17(科学技術--科学技術一般--力学・応用力学)
  • NDL 請求記号
    Z74-E929
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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