Research Article
CHF Enhancement of Advanced 37-Element Fuel Bundles
Table 1
Geometries of the modifications of standard 37-element fuel.
| Pitch circle identification | Pitch circle radius, mm | Element diameter | Number of elements | 37S fuel | Mod. pitch | 37S fuel | Mod. diam. |
| Center | 0 | 0 | 13.08 | 11.50 | 1 | Inner | 14.88 | 14.88~15.38 | 13.08 | 13.08 | 6 | Middle | 28.75 | 28.75 | 13.08 | 13.08 | 12 | Outer | 43.33 | 43.33 | 13.08 | 13.08 | 18 |
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