AbstractStrong emphasis was given to safety engineering in the TITAN study. Instead of an add-on safety design and analysis task, the safety activity was incorporated into the process of design selection and integration at the beginning of the study. Low afterheat structural material, V3 Ti1 Si was used. Passive safety features like Ar cover gas, lithium drain tanks were used to minimize the likelihood and consequence of lithium fire. Plasma accident scenarios were evaluated and found that passive safety features can be incorporated into the design. Detailed safety analysis indicated that only the assurance of coolant-piping and vacuum-vessel integrity is necessary to protect the public. The TITAN-I design meets the definition of level 3 of safety assurance design “small-scale passive safety assurance”.
Safety activities in JAERI related to ITER