THE ANALYSIS OF HYDROGEN DIFFUSION BEHAVIOR IN CONTAINMENT BY USING GOTHIC CODE AND MAAP CODE

摘要

In this study, it is supposed that pseudo-Fukushima accident occurs, the hydrogen will be determined by considering which relieves into the containment. This study shows GOTHIC code and MAAP code both predict the hydrogen concentration reach above 4%, it may cause hydrogen explosion. The GOTHIC analysis uses lump volume will make the hydrogen concentration raises rapidly than MAAP. In the future, the sub-volume model of GOTHIC code will be used to simulate the same sequences and verify with the result of MAAP code.