Effect of AP1000 Steel Containment Thickness on Heat Transfer Performance

AP1000 is one of the safest advanced power water reactors. Comparing with generation Ⅱ power plant, an obvious character of AP1000 is using steel containment instead of concrete containment. The steel containment is very important in the whole heat transfer process. The thickness of containment was studied using WGOTHIC to establish long term air cooling model and the relationship between the heat transfer performance and containment thickness was found. The results show that the safety is raised while increasing the containment thickness in a certain range. It is a reference for the power plant with steel containment design.