Environmental Engineering Reference
In-Depth Information
Table 5.1 Comparison of international dry storage regulations (Adamson et al ., 2011)
Dry storage
criteria
USA
Germany
Hungary
S. Korea
(CANDU only)
Spain (follows
USNRC)
Switzerland
Pellet clad ° C,
storage,
drying, other
400 ° 570 °
370 ° 370 ° , 100 hr
410 ° 410 °
None but
maintain
clad integrity
400 ° 570 °
None 570 °
Temperature
cycling
Max. no. of
cycles and
Max.
10/65 °
None
None
None
10/65 °
10/65 °
T ( ° C)
per cycle
Δ
BU, GWD/MT
None
65 assembly avg.
49 - 50
None
None
None
Clad hoop
stress, MPa
90 (if T clad >
400 ° C)
120@370 °
None
None
90
Depends on fuel
supplier*;
typical values
are 90 and
120
Clad strain
limit
None
1% circumferential
None
None
1% for HB
1% during
storage
Creep rupture
limits
None
None
None
None
Limited by ° T
and stress
limits
Cladding
condition
limits
Oxide
thickness
for stress
calculation
Oxide thickness
for stress
calculation
None
None
Limited by ° T
and stress
limits
None
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