Mathematical models for diffusive mass transfer from waste package container with multiple perforations
- INTERA, Inc., Las Vegas, NV (United States)
- Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
A robust engineered barrier system (EBS) is employed in the current design concept for the potential high-level nuclear waste repository at Yucca Mountain, Nevada, US. The primary component of the EBS is a multi-barrier waste package container. Simplifying the geometry of the cylindrical waste package container and the underlying invert into the equivalent spherical configuration, mathematical models are developed for steady-state and transient diffusive releases from the failed waste container with multiple perforations (or pit penetrations) at the boundary of the invert. Using the models the steady-state and transient diffusive release behaviors form the failed waste container are studied. The analyses show that the number of perforations, the size of perforation, the container wall thickness, the geometry of the waste container and invert, and the adsorption of radionuclide in the invert are the important parameters that control the diffusive release rate. It is emphasized that the failed (or perforated) waste package container can still perform as a potentially important barrier (or diffusion barrier) to radionuclide release.
- Research Organization:
- INTERA, Inc., Las Vegas, NV (United States)
- Sponsoring Organization:
- USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC01-91RW00134
- OSTI ID:
- 418396
- Report Number(s):
- CONF-960911-4; ON: DE97000408; TRN: 97:002259
- Resource Relation:
- Conference: Canadian Nuclear Society (CNS) international conference on deep geological disposal of radioactive waste, Winnipeg (Canada), 15-18 Sep 1996; Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
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