Load Specification and Seismic Analysis for ITER Tritium SDS

Korea is supposed to design, fabricate, deliver and install the ITER tritium storage and delivery system (SDS). SDS is one of the major components of the tritium plant. It includes the fuel storage and delivery systems and the tritium loading station. The tritium loading station serves for receiving tritium from external facilities and supplying tritium to the fuel delivery system. Prior to unloading, calorimetric determinations of the amount of tritium contained in the tritium shipping containers are carried out. The storage system is composed of metal hydride beds to ensure safe storage of tritium inventories. To evaluate the integrity of SDS, load specifications and analyses for dominant load case should be conducted. This study includes a load specification and a structural analysis for SDS. For the load specification, every single load possible to occur in SDS was generated. Load combinations were made based on the characteristics of each single load and incident/accident scenarios. This structural analysis includes the modal analysis and the seismic analysis for the tritium SDS glove box. The dynamic characteristics of the glove box are obtained through the modal analysis. The seismic response results are calculated for the floor response spectra given