Post-test analyses of LIFUS5 Test#3 experiment

The interaction between lithium-lead and water is a major concern of Water Cooled Lithium Lead (WCLL) breeding blanket design concept, therefore deterministic safety analysis of the in-box LOCA postulated accident is of primary importance. The paper presents the preliminary code assessment process of the modified version of SIMMER-III code for fusion application by means of LIFUS5 Test#3 post-test analyses. A series of sensitivity calculations are performed to overcome uncertainties in the test data and experiment execution, and to investigate the capability of the code in predicting the phenomena occurring during PbLi/water interaction. Results show agreement between numerical results and experimental data. Besides, differences are observed in the first second of the transient due to imperfect knowledge of initial and boundary conditions, and test execution procedure.