Hydrogen Isotopes Recovery from Liquid Lithium under Dynamic Conditions
Hydrogen Isotopes Recovery from Liquid Lithium under Dynamic Conditions作者机构：Department of Advanced Energy Engineering Science Kyushu University Fukuoka 812-8581 Japan
出 版 物：《Journal of Energy and Power Engineering》 (能源与动力工程（美国大卫英文）)
年 卷 期：2012年第6卷第6期
页 面：900-905页
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：氢同位素 液态锂 吸收率 辐照装置 辐射装置 搅拌条件 旋转速度 氢气浓度
摘 要：In the IFMIF (International Fusion Materials Irradiation Facility), high-intensity deuteron ion beam is targeted at flowing liquid Li to produce neutron for long-time irradiation test of fusion materials. Radioactive tritium (T) will be produced as by-product of the D-Li reaction. Y hot trap is expected as an effective system to recover T from the liquid Li target loop. In the present study, absorption behavior of hydrogen isotopes in Y plates is experimentally and analytically investigated under stirring conditions of liquid Li. Experiments clarified that H2 absorption rates of solid Y immersed in Li are independent of the rotating rate in the range of 0 to 100 rpm and are in proportion to the inlet H2 concentration. The rate-determining step is H diffusion in Y. A mass-transfer coefficient is a useful parameter to correlate the overall H transfer from the gaseous phase through liquid Li to the solid Y plate. The effect of activation temperature on the overall performance when Y absorbs H is comparatively investigated. It is considered that heating at 673 K is effective to activate Y along with HF treatment.
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