Open Access

Table 3.

Example of single assembly burnup calculations for a UO2 and a MOX assembly. Both are initially enriched at 4% in fissile materials. Calculations are performed with CASMO5. “Fis.” corresponds to the fissile nuclides and “Fer.” to the fertile nuclides.

UO2
MOX
Assembly Contribution from Total mass Contribution from Total mass
burnup 235U 238U 239Pu 241Pu Fis.+Fer. 235U 238U 239Pu 241Pu Fis.+Fer.
MWd/kgHM % %
0 0 0 0 0 100 0 0 0 0 100
1 0.9 0.1 0 0 99.8 0 0.1 0.8 0.1 99.7
2 1.9 0.1 0 0 99.7 0 0.1 1.7 0.2 99.6
5 4.5 0.2 0.3 0 99.3 0.1 0.4 3.9 0.6 99.2
10 8.1 0.7 1.2 0 98.7 0.3 0.7 7.8 1.2 98.7
15 11.4 1.0 2.5 0.1 98.1 0.4 1.2 11.3 2.1 98.2
20 14.4 1.4 3.9 0.3 97.6 0.5 1.7 14.6 3.2 97.7
25 17.0 1.8 5.6 0.6 96.9 0.6 2.0 18.0 4.1 97.1
30 19.4 2.1 7.6 0.9 96.4 0.8 2.4 21.2 5.4 96.5
35 21.5 2.5 9.6 1.4 95.8 0.9 2.9 24.2 6.7 96.0

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.