Long-term storage of spent fuel from light-water reactors
Very long-term interim storage of spent light-water-reactor fuel is an important part of the back-end of the nuclear fuel cycle. Different storage concepts are investigated as regards costs, behaviour of spent fuel assemblies and activity release. The storage concepts concerned are interim storage of spent fuel assemblies in cask storage facilities, independent modular wet storage facilities and independent modular dry vault storage facilities. Costs for a number of waste management options are calculated for two selected nuclear power programmes and three different storage concepts, considering various general price increases and interest rates. Risks to the integrity of stored fuel assemblies are investigated and in particular, processes endangering the tightness of the fuel rod: external and internal oxidation, hydrogen absorption and diffusion, crack propagation and creep deformation. The investigation of these mechanisms shows that wet storage of spent fuel is safe and feasible for at least a hundred years. The analysis of dry storage behaviour indicates a limit to the dry storage temperature, but no restriction as regards the length of the storage period.
Bibliographic Reference: EUR 11866 EN (1988)
ISBN: ISBN 92-825-9097-6;CD-NA-
Record Number: 198910071 / Last updated on: 1994-12-01
Original language: en
Available languages: en