Dry cleaning process test for fuel assembly of fast reactor plant system, 2; Laboratory scale test for fuel assembly and evaluation of the amount of residual sodium

ナトリウム冷却炉の乾式洗浄試験,2; 燃料バンドル試験

井手 章博*; 工藤 秀行*; 犬塚 泰輔*; 原 正秀*; 加藤 篤志 ; 石川 信行; 大高 雅彦; 永井 桂一 ; 斉藤 淳一  ; 荒 邦章 

Ide, Akihiro*; Kudo, Hideyuki*; Inuzuka, Taisuke*; Hara, Masahide*; Kato, Atsushi; Ishikawa, Nobuyuki; Otaka, Masahiko; Nagai, Keiichi; Saito, Junichi; Ara, Kuniaki

次世代ナトリウム冷却炉では経済性向上のために革新的な使用済み燃料の乾式洗浄プロセスを採用しており、本稿はナトリウムループを使った燃料バンドル規模の試験の結果を報告する。

A next generation SFR in Japan has adopted an advanced dry cleaning system which consists of the following process of argon gas blowing to reduce the amount of metallic sodium, moist argon gas blowing to deactivate the residual sodium, and direct storage in the SFP without using storage containers. This three-step process increases economic competitiveness and reduces waste products. In this Research and Development work, the amount of residual sodium and performance of the dry cleaning process were investigated. This paper describes experimental and analytical work for all parts of a fuel assembly except for a fuel pin bundle.