The proceedings of the JSME annual meeting
Online ISSN : 2433-1325
2006.3
Session ID : 2638
Conference information
2638 Stochastic Safety Analysis for Nuclear Power Plant : An Application to Decay Heat Removal Analysis
Akira YAMAGUCHISatoru WADATakashi TAKATA
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Details
Abstract
Safety analyses for nuclear reactors involve inherently various uncertainties. The uncertainties come from the input parameters, physical modeling, and numerical methods employed. In the present study, a stochastic analysis of the decay heat removal of a liquid metal reactor is performed. The output from the stochastic analysis is to obtain the tolerance limit and the confidence level of the computational output, and to identify the sensitive input parameters to the output. The tolerance limit and the confidence level are evaluated using order statistics technique for the computational results. The importance of the individual input parameters are estimated using variance of the conditional expectation. Furthermore, a methodology has been developed for evaluating dependencies among input parameters. It is found that the proposed methodology is effective for understanding the stochastic safety analysis and the results.
Content from these authors
© 2006 The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top