ガラス固化溶融炉における白金族元素粒子挙動解析 Numerical Analysis of Platinum Group Particle Behavior in Vitrification Melter

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  In the vitrification of high-level radioactive liquid wastes, platinum group particles originally included in the liquid wastes are mixed into molted glass and convected with the glass flow in vitrification melters. Though behaviors of the platinum group particles in the melters should be investigated to establish efficient melter operation methods, difficulties in observations or measurements of the particles in the actual melters due to high radioactivity have prevented enough investigation. In this paper, we present a numerical analysis method to evaluate the behaviors of the particles in the melters. Since the thermal convection field of the molten glass, electrical potential and particle distribution are formed by the interaction of the particles in the melters, we coupled these physical behaviors in the numerical method to evaluate the melter status with high accuracy. A numerical simulation was conducted and transient behaviors of the particles in the melters were determined. The results of simulation for ten batches of operation (each batch consists of melting, bottom heating and discharging operations) showed that an effective particle discharge can be achieved, as observed in mock-up experiments. These results imply that our numerical method can evaluate transient behaviors of the platinum group particles in vitrification melters.<br>

収録刊行物

  • 日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan  

    日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan 7(3), 297-307, 2008-09-01 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10021307740
  • NII書誌ID(NCID)
    AA11643165
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13472879
  • NDL 記事登録ID
    9629587
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業)
  • NDL 請求記号
    Z74-C788
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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