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Solid Radioactive Waste Strategy Report.pdf - UK EPR

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<strong>EPR</strong> <strong>UK</strong><br />

N° NESH-G/2008/en/0123<br />

REV. A PAGE 152 / 257<br />

Spent fuel<br />

Expandable clay<br />

Surface installations<br />

Copper<br />

container<br />

Crystalline<br />

rock<br />

Underground<br />

storage areas<br />

FIGURE 61: KBS-3V DISPOSAL CONCEPT IN SWEDEN AND FINLAND ( VERTICAL<br />

OPTION)<br />

In France, for the studies performed by ANDRA for the “Dossier Argile” relating to a clay<br />

formation, 2 types of spent fuel packages have been determined to comply with host rock<br />

temperature requirements:<br />

· A large diameter (1250 mm) package with 4 fuel assemblies. The maximum heat<br />

load of the package is 1600 W;<br />

· A small diameter (600mm) package, limited to a single fuel assembly, with a<br />

maximum heat load of 1100 W.<br />

These 2 packages are illustrated hereafter (see Figure 62 and Figure 63).

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