Tritium Release Behavior from Molten Lithium-Lead Alloy (Li₁₇Pb₈₃) by Permeation Through Structural Material

Tritium release behavior through structural material in the presence of molten lithium-lead alloy (Li₁₇Pb₈₃) was studied in TREXMAN program. Tritium permeation ratio to the secondary carrier gas line depends strongly upon H₂ pressure in He sweep gas of the primary and the secondary carrier gas lines. It increased with increasing H₂ pressure below 10⁴ Pa and above the value it became constant. An analytical model was applied to the experimental data on the tritium release to obtain the mass transfer coefficient.