A very small number of disposal containers of heat generating nuclear waste may have initial manufacturing defects that would lead to pin-hole type failures at the time of or shortly after emplacement. For sufficiently long-lived containers, only the the initial defects need be considered in modelling of release rates from the disposal vault. Two approaches to modelling of near-field mass transport from a single point source within a disposal room have been compared: the finite-element code MOTIF (AModelOfTransportInFractured/porous media) and a boundary integral method (BIM). These two approaches were found to give identical results for a simplified model of the disposal room without groundwater flow. MOTIF has been then used to study the effects of groundwater flow on the mass transport out of the emplacement room.
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Environmental Impact Statement on the Concept for Disposal of Canada’s Nuclear Fuel Waste, Atomic Energy of Canada Limited, AECL-10711, COG-93-1, 1994.
L.H. Johnson, D.M. LeNeveu, D.W. Shoesmith, D.W. Oscarson, M.N. Gray, R.J. Lemire, and N.C. Garisto, The Disposal of Canada’s Nuclear Fuel Waste: The Vault Model Postclosure Assessment, AECL-10714, COG-93-4, 1994.
M. KoláŘ and D.M. LeNeveu, Near-field mass transport from a point source (instantaneously failed container) located in a disposal room, AECL-11172, COG-I-94-444, 1994.
T. Chan, J.A.K. Reid and V. Guvanasen, Numerical modelling of coupled fluid, heat and solute transport in deformable fractured rock. In Coupled Processes Associated with Nuclear Waste Repositories, Proceedings of an International Symposium, Berkeley, 1985, Academic Press Inc., Orlando, p. 605, 1987.
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Kolář, M., Leneveu, D.M. & Johnson, L.H. Near-Field Transport of 129I from a Point Source in an In-Room Disposal Vault. MRS Online Proceedings Library 353, 535–542 (1994). https://doi.org/10.1557/PROC-353-535