Open Access
Table 1.
LEU+ loaded SMR core design parameters [2].
| Parameter | Value |
|---|---|
| Reactor type | Integral PWR |
| Plant capacity (# of reactors) MWe | 680 (4) |
| Thermal/electrical capacity per reactor, MWt/MWe | 520/170 |
| NSSS operating pressure, MPa | 15 |
| Core inlet/outlet coolant temperature, °C | 295.5/320.0 |
| Fuel type/assembly array | UO2/17 × 17 square pitch |
| Number of fuel assemblies in the core | 69 |
| Fuel enrichment, w/o | < 8 |
| Maximum pin burnup MWD/MTU | < 71 000 |
| Refueling cycle, months | 36 |
| Batch | Two batches |
| Reactivity control (Soluble boron-free) | Control rod, burnable absorber rods, moderator temperature |
| Burnable absorbers | Er2O3, Gd2O3, HIGA (Gd2O3 – Al2O3) |
| Steam generator | Helical once-through type |
| Safety systems | Fully passive |
| Design life, years | 80 |
| Seismic design (SSE), g | 0.5 |
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