Tritium transport analysis for tokamak exhaust processing system of tritium plant

摘要

As an important part of tritium plant, tokamak exhaust processing (TEP) system is used for extracting hydrogen isotopes from exhaust gas of tokamak which contains high concentration of tritium and deuterium. A detailed tritium transportation analysis for TEP system can help to obtain more precise and accurate results of tritium behavior in the tritium plant. In this paper, a detailed model of TEP system is established for the particular tritium transportation simulation during its operation. Mean residence time method is mainly used to simulate tritium transport in TEP, and a new calculating method is developed as optimization for Pb-Ag membrane processing. The tritium inventories and tritium losses of components in TEP system are obtained. The influences of reflux ratio of one membrane permeator on the tritium transportation behavior are also analyzed.