Research Article
Sensitivity Evaluation of AP1000 Nuclear Power Plant Best Estimation Model
Table 2
The influence of core channel node number on the reactor pressure drop.
| Node number | Reactor inlet pressure (MPa) | Reactor outlet pressure (MPa) | Calculated reactor pressure drop (MPa) | Designed reactor pressure drop (MPa) | Fractional error |
| 5 | 15.7545 | 15.3944 | 0.3601 | 0.43 | 16.26% | 10 | 15.8342 | 15.4213 | 0.4129 | 0.43 | 3.98% | 15 | 15.8947 | 15.3997 | 0.495 | 0.43 | 15.12% | 20 | 15.9516 | 15.4006 | 0.551 | 0.43 | 28.14% | 30 | 16.0739 | 15.6097 | 0.4642 | 0.43 | 7.95% | 40 | 16.1328 | 15.6315 | 0.5013 | 0.43 | 16.58% | 50 | 16.1675 | 15.6589 | 0.5086 | 0.43 | 18.28% |
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