Open Access
Table 5
Summary of Halden LOCA tests IFA-650.9 and IFA-650.10 [135]. The indicated time and axial position of cladding burst refer tostart of blowdown and bottom end of the fuel pellet column.
| Rod 9 | Rod 10 | ||
|---|---|---|---|
| Test rodlet characteristics | |||
| Cladding material | Zr-4* | Zr-4 | |
| Cladding oxide thickness | [μm] | 7-8 | 27-30 |
| Fill gas pressure at 295 K | [MPa] | 4.0 | 4.0 |
| Average fuel burnup | [MWd/(kgU)] | 90 | 61 |
| Testing conditions | |||
| Rodlet LHGR | [kW/m] | 2.60 | 1.37 |
| Heater LHGR (initial) | [kW/m] | 1.60 | 1.20 |
| Blowdown duration | [s] | 35 | 71 |
| Peak cladding temperature | [K] | 1475 | 1114 |
| Cladding burst time | [s] | 133 | 249 |
| Cladding burst position | [mm] | 80 | 240 |
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