Thermo-mechanical analysis on the full module of water cooled ceramic breeder blanket for CFETR

To investigate the thermo-mechanical behavior of the current WCCB blanket design version under normal operation and accidental operation scenarios (e.g. in-box loss of coolant accident (LOCA)), the fifinite element thermo-mechanical analyses of a full blanket module were performed by using ANSYS Multiphysics code.

The stress results were assessed referring to ITER SDC-IC code. Under normal operation scenario, the blanket shows a satisfying mechanical behavior withstanding 15.5 MPa coolant pressure on its cooling channel walls and thermal deformations. However, under in-box LOCA scenario, the blanket fails to withstand 15.5 MPa coolant pressure on its internal walls at normal operation thermal level.