Construction of calculation code to analyze bred tritium release curve from solid breeder materials

构建计算代码来分析固体增殖材料的增殖氚释放曲线

• 批准号: 12558050
• 负责人: NISHIKAWA Masabumi
• 金额: $ 2.24万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12558050/
• 关键词: solid breeder; tritium; release after irradiation; tritium diffusivity; adsorption; isotope exchange reaction 1; isotope exchange reaction 2; water formation reaction; 個体増殖材; リチウム化合物; アウトパイル放出実験; 見掛け拡散速度; 固体増殖機; リシウムチタネート; 質量移行; 同位体交換反応; 同

In order to understand the tritium behavior in a blanket system packed with sintered pebbles of micro crystal grains of ceramic breeder material, it is necessary to know the contribution of such tritium transfer steps as(1) tritium formation reaction in crystal grain, (2) diffusion of tritium in crystal grain to the grain surface, (3) interaction of migrating tritium with irradiation defects formed in crystal grain, (4) absorption of tritium into bulk of crystal grain, (5) adsorption or desorption of tritium on grain surface, (6) isotope exchange reaction between molecular form hydrogen, H_2, in the gas stream and tritium on grain surface (isotope exchange reaction 1), (7) isotope exchange reaction between water vapor, H_20, in the gas stream and tritium on grain surface (isotope exchange reaction 2), (8) water formation reaction on grain surface at addition of H_2 to the blanket purge gas especially at high temperature, (9) transfer of hydrogen isotopes and water through pores of the sintered pebble, (10) transfer of hydrogen isotopes and water through boundary layer formed on the surface of a sintered pebbles to the gas stream.

为了了解陶瓷增殖材料微晶烧结卵石包层体系中的氚行为，有必要了解如下几个氚转移步骤的贡献：(1)晶体中的氚形成反应，(2)晶体中的氚向颗粒表面的扩散，(3)迁移的氚与晶体中形成的辐照缺陷的相互作用，(4)氚在晶体中的吸收，(5)氚在颗粒表面的吸附或解吸，(6)分子态氢、氢、在气流和颗粒表面的氚(同位素交换反应1)中，(7)气流中的水蒸气H_20与颗粒表面的氚之间的同位素交换反应(同位素交换反应2)，(8)在包层净化气体中添加H_2时在颗粒表面形成水的反应，特别是在高温下，(9)氢同位素和水通过烧结鹅卵石的气孔转移，(10)氢同位素和水通过在烧结鹅卵石表面形成的边界层转移到气流中。

项目成果

S.Beloglazov, M.Nishikawa, T.Tanifuji: "Modelling of tritium release from irradiated Li_2ZrO_3"Fusion Science and Technology. Vol.41,No.5. 1049-1053 (2002)

S.Beloglazov、M.Nishikawa、T.Tanifuji：“辐照 Li_2ZrO_3 中氚释放的建模”聚变科学与技术。

M.Nishikawa, N.Nakashima, K.Hashimoto, S.Beloglazov: "Isotope exchange capacity on Li_4SiO_4 and comparison of tritium inventory in various solid breeder blanket"Journal of Nuclear Science and Technology. Vol.38,No.11. 944-951 (2001)

M.Nishikawa，N.Nakashima，K.Hashimoto，S.Beloglazov：“Li_4SiO_4上的同位素交换容量以及各种固体增殖毯中氚库存的比较”核科学与技术杂志。

S.Beloglazov, M.Nishikawa, T.Tanifuji: "Modeling of tritium release from irradiated Li_2ZrO_3"Fusion Science and Technology. Vol.41,No.5. 1049-1053 (2002)

S.Beloglazov、M.Nishikawa、T.Tanifuji：“辐照 Li_2ZrO_3 中氚释放的建模”聚变科学与技术。

T.Kawagoe, M.Nishikawa, A.Baba, S.Belogazov: "Surface inventory of tritium on Li_2TiO_3"Journal of Nuclear Materials. Vol.297. 27-34 (2001)

T.Kawagoe、M.Nishikawa、A.Baba、S.Belogazov：“Li_2TiO_3 上氚的表面库存”核材料杂志。

T.Kawagoe, M.Nishikawa, A.Baba, S.Beloglazov: "Surface inventory of tritium on Li2TiO3"Journal of Nuclear Materials. Vol.297. 27-34 (2001)

T.Kawagoe、M.Nishikawa、A.Baba、S.Beloglazov：“Li2TiO3 上氚的表面库存”核材料杂志。