Algorithms of Consequence Analysis for PSA in Nuclear Power Plant

In the process of consequence analysis for PSA, simplification on fault tree converted from event trees was done in order to reduce the scale of fault trees. A three-step algorithm was presented based on the theory of consequence analysis. In addition, considering the inconvenience of FAUNET for some specific consequence fault tree structure, a new absorption algorithm was introduced. The algorithms were implemented in the home-developed PSA code RiskA. The comparative analysis of some examples shows that the methods are effective.