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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 斎藤 義則床井 博見池田 孝志真野 多喜夫岡部 綾夫
- Publication Date
- 1996-03
- Publication Date (W3CDTF)
- 1996
- Alternative Title
- Design development of sodium-water reaction jet code for the LEAP
- Periodical title
- PNC TJ9124 96-005
- Target Audience
- 一般
- Note (General)
- 出版タイプ： NA次期大型炉蒸気発生器(SG)伝熱管の合理的設計基準水リーク率(DBL)の選定にあたって,高温ラプチャによる破損伝播の可能性を定量的に評価する必要がある。高温ラプチャを含む破損伝播挙動を適切に評価するためには,a)ブローダウン解析モデル,b)高温ラプチャモデル(構造/破壊力学的モデル),c)反応領域温度分布解析のためのナトリウム-水反応ジェットモデルの開発が不可欠である。本報では,これら全体開発計画の中の,ナトリウム-水反応ジェット解析モデルを開発するために,解析モデルの検討を行いコードを設計した。また,コード開発で必要となる,化学反応モデルと二流体モデルの試計算を行い,これらのモデルの妥当性を確認した。さらに,既往の解析コードとの比較によるコード間の比較検証を実施して,二相流解析で実績の多いSIMA/SMORCコードのモデルを基本に改修する方法が最適なコード開発手法であるとの見通しを得た。In selecting the reasonable DBL on steam generator, it is indicated that the possibility of failure propagation due to overheating should be evaluated. This study is concerned with the design development of sodium-water reaction jet code for the LEAP in the overall development plan for the next models to evaluate the reasonable DBL; a)blow down analysis models, b)overheating tube bursting models (structural/ fractural dynamics)and c)sodium-water reaction jet model for reaction zone temperature distribution analysis. In this study, sodium-water reaction jet code were designed with considering aniytical models; two-fluid model and chemical reaction model. In order to check the application of the models, test analyses for two-fluid model \& chemical reaction model were carried out. These results were physically reasonable. Comparing some typical developed codes for two-phase flow analysis, SIMA/SMORC codes are considered to be useful for two-phase flow analysis with chemical reaction and, therefore, are most available for developing new sodium-water reaction jet code.
- Source
- /PNC-TJ9124-96-005.pdf （fulltext）