Description
The radionuclide inventory and associated heat output of a spent fuel canister is determined by the fuel type (BWR and PWR types of UO2, and also MOX) and burnup. Either 4 PWR or 9 BWR fuel elements will be placed in a canister and the average burnup is required to be less than 48 GWd/tIHM in order to remain below the 1500 W per canister thermal constraint for assumed average storage times of 40 years. In the case of MOX fuel, it is necessary to combine 1 MOX PWR element with 3 UO2 PWR fuel elements in a canister. To ensure that the maximum heat output of 1500 W per canister is not exceeded, strict quality control procedures will be required.
OPA Category
Category as used in the OPA assessment
OPA Number
Number as used in the OPA assessment
Waste Relevance
Classes of waste to which this FEP is relevant
NEA V1 IFEP Reference(s)
Related IFEPs from the NEA V1 IFEP list from 1999