本文模型描述的是氚从芯块-包壳间隙到冷却剂的过程,建立了2D模型,模型的左侧边界处于芯块外径与间隙的界面处,右侧边界是包壳管外表面。介绍了模型公式,边界条件,基本假设等等,以及采用的氚在材料中的溶解度。
The model in this paper describes the process of tritium from the mantle-shell gap to the coolant, and establishes a 2D model, the left boundary of the model is at the interface between the outer diameter and the gap of the mantle, and the right boundary is the outer surface of the shell tube. The model formula, boundary conditions, basic assumptions, etc., as well as the solubility of tritium in the material employed, are introduced.