Speaker
Description
The Swedish Nuclear Fuel and Waste Management Company is tasked with the construction and operation of geological repositories for spent nuclear fuel and radioactive waste from the existing fleet of Sweden’s nuclear power reactors. In the Swedish government’s roadmap for a nuclear new-build program, both large-scale and small modular reactors are envisioned. Amongst many other aspects, the management and disposal of spent nuclear fuel and radioactive waste from these new reactors have to be planned and financed. Scoping calculations for the expected waste types are a crucial input to the decisions how to extend or adapt the current system for waste management and disposal.
In the present study, as an example, the amount of spent nuclear fuel arising during the lifetime of a light water small modular reactor, namely, NuScale’s Power Module, an integral pressurized water reactor with 160 MWth of thermal power, was calculated.
Serpent, a multi-purpose three-dimensional continuous-energy neutron and photon transport Monte Carlo code, was used to model the equilibrium core of a NuScale Power Module and to calculate the amount of spent nuclear fuel and its discharge burnup. According to the performed scoping calculations, a single Power Module would give rise to 96 metric tons spent nuclear fuel after 60 years of operation. The average discharge burnup was calculated to be approximately 37 GWd/t-U.
| Country OR International Organization | Sweden |
|---|---|
| Email address | martin.amft@swe.uniper.energy |
| Confirm that the work is original and has not been published anywhere else | YES |
