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A Preliminary comprehensive dynamic analysis of the typical FaCT scenarios with JSFR and related fuel cycle facilities

FBRと関連燃料サイクル施設への典型的な移行期シナリオの予備評価

塩谷 洋樹; 小野 清; 小川 隆; 駒 義和; 川口 浩一

Shiotani, Hiroki; Ono, Kiyoshi; Ogawa, Takashi; Koma, Yoshikazu; Kawaguchi, Koichi

FaCTプロジェクトで開発中のFBRと関連燃料サイクル施設への典型的な移行シナリオに関して、予備的な包括評価を実施した。各施設における物質の組成評価や廃棄物発生量評価に加え、長期的な経済性を把握するために22世紀までのキャッシュフローと平均発電原価を試算した。廃棄物発生量とキャッシュフローのピークが数か所で見られたが、発電所と軽水炉使用済燃料の再処理施設の廃止と建設が原因であった。さらに、異なる増殖比,共用の再処理施設,MA(Am-Cm)リサイクルの有無に着目した比較を試みた。例えば、増殖比については、導入期の最適な炉心として増殖比1.1から1.2の間で検討されることは合理的であるとの暫定的な結論が得られた。

Dynamic analyses of the typical FR deployment scenarios with JSFR and related fuel cycle facilities developed in FaCT project was conducted. The total cash out-flows and the average electricity generation costs to 22nd century were calculated to seize the long-term economics as well as the material compositions in the nuclear facilities, the quantities of radioactive wastes generations. Several cash out-flow peaks and radioactive waste generation peaks were found because of the decommissioning and construction of the nuclear power plants and reprocessing plants for LWR spent fuel. Then, different breeding ratio, single/dual-purpose reprocessing plant, and with/without Am-Cm recycling were compared. For example, the exploration of the optimal breeding ratio between B.R. =1.1 and 1.2 for the start up stage FR was considered to be reasonable from the analysis.

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