The heat transfer from the containment inside to the atmosphere environment via the process of the wall steam condensation with non-condensable gases, the steel wall thermal conduction and the water film evaporation outside is the advanced technique for core residual heat removal during the long term depressurized stage of a nuclear power accident. Thus, the full pressure inner steam wall condensation coupled outer evaporation experimental platform has been carried out in China to take the thermal-hydraulic studies and to validate the passive safety system used in advanced PWR. The current work mainly discussed and analyzed the important wall heat transfer phenomena which were then used for the advanced PCCS design applications and safety evaluations. Necessities of the experimental studies on these evaporation and condensation phenomena were analyzed and proposed to carry out on a experimental platform. The experimental platform requirements were analyzed and then were specified for constructions. It also gave the advantages of the coupled heat and mass transfer study platform and further study objectives. Finally, the facility construction was summarized.
