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Maintenance procedures for the TITAN-I and TITAN-II reversed field pinch reactors

S.P. Grotz, R.L. Creedon, P.I.H. Cooke, W. Duggan, C.P.C. Wong1989年Fusion Engineering and DesignIF 1.7出版社

AbstractThe TITAN reactor is a compact, high-power-density (neutron wall loading 18 MW/m2) machine, based on the reversed-field-pinch (RFP) confinement concept. Two designs for the fusion power core have been examined: TITAN-I is based on a self-cooled lithium loop with a vanadium-alloy structure for the first wall, blanket and shield; and TITAN-II is based on an aqueous loop-in-pool design with a LiNO3 solution as the coolant and breeder. The compact design of the TITAN fusion power core, (FPC) reduces the system to a few small and relatively low mass components, making toroidal segmentation of the FPC unnecessary. A single-piece maintenance procedure is possible. The potential advantages of single-piece maintenance procedures are: (1) short period of down time; (2) improved reliability; (3) no adverse effects resulting from unequal levels of irradiation; and (4) ability to continually modify the FPC design. Increased availability can be expected from a fully pre-tested, single-piece FPC. Pre-testing of the FPC throughout the assembly process and prior to installation into the reactor vault is discussed.

日本語訳

TITAN炉は、逆転磁場ピンチ(RFP)閉じ込め概念に基づく、コンパクトな高出力密度(中性子壁負荷18 MW/m²)の装置である。核融合動力炉心について2つの設計が検討されている:TITAN-Iは、バナジウム合金構造を第一壁、ブランケット、および遮蔽体に用いた自己冷却リチウムループに基づくものであり、TITAN-IIは、LiNO₃溶液を冷却材および増殖材とする水溶液ループ・イン・プール設計に基づくものである。TITAN核融合動力炉心(FPC)のコンパクト設計は、システムを少数の小型で比較的低質量の構成要素に縮小し、FPCのトロイダル分割を不要にする。単一ピース方式の保守手順が可能となる。単一ピース方式保守手順の潜在的な利点は以下の通りである:(1)短い停止期間;(2)信頼性の向上;(3)不均等な照射レベルに起因する悪影響がないこと;(4)FPC設計を継続的に変更できること。完全に事前試験された単一ピースFPCからは、稼働率の向上が期待できる。組立工程全体を通じて、また原子炉格納容器への設置前にFPCを事前試験することについて議論する。

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Reversed field pinch
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