MODELING AND ANALYSIS OF HYDROGEN DETONATION EVENTS IN THE ADVANCED NEUTRON SOURCE REACTOR CONTAINMENT

This paper describes salient aspects of the modeling, analyses and eva luations for hydrogen detonation in selected regions of the Advanced N eutron Source (ANS) containment during hypothetical severe accident co nditions. Shock wave generation and transport modeling and analyses we re conducted for two stratified configurations in the dome region of t he high bay. Principal tools utilized for these purposes were the CTH and CET89 computer codes. Dynamic pressure loading functions were gene rated for key locations and used for evaluating structural response be havior for which a finite-element model was developed using the ANSYS code. For the range of conditions analyzed in the two critical dome re gions, it was revealed that the ANS containment would be able to withs tand detonation loads without failure.