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Development of hydraulic analysis code for optimizing ceramics reactors

セラミックス反応器設計のための流動解析コードの開発

寺田 敦彦; 竹上 弘彰; 野口 弘喜; 上地 優; 石倉 修一*

Terada, Atsuhiko; Takegami, Hiroaki; Noguchi, Hiroki; Kamiji, Yu; Ishikura, Shuichi*

日本原子力研究開発機構は、ISプロセス法による水素製造技術の研究を進めている。ISプロセス機器の設計研究では、熱流動と構造健全性の観点からセラミックス反応器の高性能化が重要である。そこで、2成分系の硫酸分解蒸発過程を考慮したセラミックス反応器設計のための簡易流動解析コードを開発した。本報告では、これと汎用のFEMコードを組合せて、硫酸分解器のセラミックス構造体の構造強度解析評価に適応した予備解析結果について報告する。

The Japan Atomic Energy Agency has been conducting study on thermo-chemical Iodine-Sulfur (IS) process for water splitting hydrogen production. In design of the IS test equipment, it is important to design ceramics chemical reactors with high performance from the viewpoint of thermal hydraulics and structural integrity. A new simple hydraulic analytical code has been developed for considering sulfuric acid solution as a mixture of two components especially in the H$$_{2}$$SO$$_{4}$$ decomposer. Complex flow with liquid-vaporized interaction involving chemical reaction will be characterized in the H$$_{2}$$SO$$_{4}$$ decomposer. Based on the preliminary analytical results obtained with above mentioned code, conceptual investigation of structural integrity of ceramics decomposer was carried out by a general commercial FEM code.

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