Hydrogen generation in tru waste transportation packages

Anderson, B ; Sheaffer, M K ; Fischer, L E

Lawrence Livermore National Laboratory

关键词: Alpha-Bearing Wastes;    Radiolysis;    Forecasting;    08 Hydrogen;    Recommendations;   

DOI  :  10.2172/15006875
RP-ID  :  UCRL-ID-138352
RP-ID  :  W-7405-ENG-48
RP-ID  :  15006875

美国|英语

来源: UNT Digital Library

【 摘 要 】

This document addresses hydrogen generation in TRU waste transportation packages. The potential sources of hydrogen generation are summarized with a special emphasis on radiolysis. After defining various TRU wastes according to groupings of material types, bounding radiolytic G-values are established for each waste type. Analytical methodologies are developed for prediction of hydrogen gas concentrations for various packaging configurations in which hydrogen generation is due to radiolysis. Representative examples are presented to illustrate how analytical procedures can be used to estimate the hydrogen concentration as a function of time. Methodologies and examples are also provided to show how the time to reach a flammable hydrogen concentration in the innermost confinement layer can be estimated. Finally, general guidelines for limiting the hydrogen generation in the payload and hydrogen accumulation in the innermost confinement layer are described.