3 Method for evaluating local hydrogen concentration in containment building by severe accident using 3-dimentional compuational analysis code

摘要

The present invention relates to a method for determining the local hydrogen concentration in a containment building in the event of a serious accident by using a three-dimensional computerized analysis code, comprising: inputting a nuclear power plant and an accident scenario to be analyzed in the computerized analysis code of a serious accident to obtain a code analysis resu deriving initial conditions and boundary conditions for performing local hydrogen analysis from the code analysis resu analyzing the local hydrogen concentration by inputting the initial conditions and boundary conditions to the three-dimensional model of the nuclear power plant to be analyzed; and determining whether the local hydrogen concentration is greater than or equal to a predetermined standard.