Simulation of Containment Thermal-Hydraulic Transients in Different Experimental Facilities With the CONTAIN Code

Three experiments on containment phenomena, which were performed in the TOSQAN, PHEBUS and KAEVER integral experimental facilities, were simulated with the lumped-parameter computer code CONTAIN. In the experiments, which were performed at similar pressure and temperature conditions, steam condensation played a dominant role. The simulation results were used to assess the ability of the CONTAIN code to simulate the transient thermal-hydraulic behavior of containment vessels with different arrangements of heat structures.