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Leakage analysis of the EVOLVE first wall

Saurin Majumdar2002年Fusion Engineering and DesignIF 1.7出版社

AbstractLeakage of lithium through cracks in the first wall (FW) of evaporation of lithium and vapor extraction was analyzed for two limiting cases, which are simplified versions of the real case, where the lithium enters the cracks as liquid and flashes to vapor phase within the FW. Leakage rates were calculated for the cases of liquid lithium flow and lithium vapor flow. Inasmuch as the coolant pressure is close to the saturation pressure, the limiting case of lithium vapor flow should be closer to reality. The impact of lithium leakage on first-wall cooling and plasma contamination is discussed.

日本語訳

リチウムの蒸発と蒸気の抽出における第一壁(FW)の亀裂を通したリチウム漏洩を、実現象の簡略化された2つの極限ケースについて解析した。そのケースとは、リチウムが液体として亀裂内に入り、FW内で蒸気相にフラッシュする場合である。漏洩率は、液体リチウム流およびリチウム蒸気流の各ケースについて計算された。冷却材圧力が飽和圧力に近いことから、リチウム蒸気流の極限ケースが実際の現象により近いと考えられる。リチウム漏洩が第一壁の冷却およびプラズマ汚染に及ぼす影響について考察する。

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