Based on the data presented in the figure, we can see that the saturation time of tritium adsorbed onto core graphite increases as the tritium yield decreases. Specifically, without pumping out tritium, it takes approximately 10 days for total tritium yield, 70 days for one-tenth of tritium yield, and 480 days for one percent of tritium yield to reach saturation. However, if tritium is pumped out, the saturation time is reduced to around 30 days for total yield and 200 days for one-tenth yield. It’s worth noting that even after five years of operation, the saturation point is not reached for one percent yield.
Once tritium reaches saturation adsorption, any excess will diffuse into the fuel salt circuit and coolant salt circuit unless actively removed by a pump or other measures. Using a pump can effectively buffer against further permeation when saturation is reached in the adsorption of tritium onto core graphite.
Overall, these findings suggest that carefully monitoring and managing tritium levels in nuclear systems is crucial to prevent potential safety hazards associated with its release.
