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Na冷却高速炉における大口径配管の流力振動評価に関する研究,35; ホットレグ配管流力振動評価指針(案)の作成

Study on flow-induced-vibration evaluation of large-diameter pipings in a sodium-cooled fast reactor, 35; Development of proposed guideline of flow-induced vibration evaluation for hot-leg piping

山野 秀将; 田中 正暁; 金子 哲也; 堺 公明; 佐郷 ひろみ*; 廣田 和生*; Xu, Y.*

Yamano, Hidemasa; Tanaka, Masaaki; Kaneko, Tetsuya; Sakai, Takaaki; Sago, Hiromi*; Hirota, Kazuo*; Xu, Y.*

冷却系を2ループ構成にして出力の大型化を目指したナトリウム冷却高速炉の設計成立性を確実にするため、大口径エルボ配管部における流力振動特性の把握及び評価手法開発を目的として試験・解析評価を実施してきた。これらの研究成果を集約してホットレグ配管流力振動評価指針(案)を作成した。

Experimental and analytical evaluation have been carried out to understand flow-induced-vibration characteristics of large-diameter elbow pipings and to develop its assessment methodology for ensuring the feasibility of sodium fast reactor design with two-loop cooling system for the increase of reactor power output. Proposed guideline of flow-induced vibration evaluation for hot-leg piping has been developed compling their research results.

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