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Report No.

Numerical analysis on hydrogen behavior prediction for safe management of highly radioactive materials

Terada, Atsuhiko  ; Nagaishi, Ryuji ; Thwe Thwe, A.  

With a storage containing wet radioactive waste such as fuel debris, it is important to reduce the risk of explosion and combustion due to hydrogen generated by radiolysis of water. This study, as a part of the development of simulation technologies for verification of reduction countermeasures and proposal of new countermeasures, conducted simulation of the hydrogen flow analysis and combustion behavior. It was found that the hydrogen safety risk reduction effects and issues affected by the natural ventilation and PAR, inert gas conditions in the container and facility.



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