Conveners
Session 2.2: Spent Fuel and High Level Waste storage and subsequent transportability
- Mattias Nyström (Swedish Nuclear Fuel and Waste Management CO)
- Hatice Akkurt (Electric Power Research Institute)
As for the concrete cask, because its canister is a welded construction, a helium leak from the canister wasn’t considered in the past. However, during long-term storage of spent fuel, stress corrosion cracking (SCC) could occur at welded parts of the canister, so that a loss of sealing performance is concerned now. To resolve this concern, we have been developing methods for detecting the...
In the United States, used fuel assemblies discharged from nuclear power plants (NPPs) have historically been stored on-site using licensed dry storage systems. The duration of storage at the NPP sites was intended to be short term (20 to 40 years) with subsequent transportation to a geological repository. Due to shutdown/decommissioning of several NPPs and delays in the implementation of the...
Dry Storage Systems are used as an onsite storage method for used nuclear fuel. Since no country currently has an operable repository, it will be essential for many countries around the world to extend the period of operation for these systems. Nondestructive evaluation (NDE) inspections are needed to verify continued safe operation of these dry storage systems; however, elevated...
On March 11, 2011, a tremendous earthquake of a 9.0 magnitude occurred in Japan. In the Fukushima Daiichi Nuclear Power Station, fuel assemblies were stored for the Units 1 to 6 Spent Fuel Pool, common pool and dry casks. The paper reports the lessons learned from Fukushima Daiichi Nuclear Accident for spent fuel storage.
France has chosen a recycling strategy to manage nuclear spent fuels. This strategy relies on high level waste immobilization into a borosilicate glass waste form in order to meet both interim storage and final geological disposal safety requirements. Interim storage facilities at La Hague recycling plant have been designed to last more than an hundred years (concrete structure) factoring the...
