Research Article
Dynamic Modeling and Control Characteristics of the Two-Modular HTR-PM Nuclear Plant
Table 1
Main parameters of the dynamic model.
| | Parameter | Name | Unit | Value |
| | () | Prompt neutron lifetime | s | | | Fraction of all the delayed neutrons | % | 0.67 | | | Fraction of 1st group delayed neutrons | % | 0.0256 | | | Fraction of 2nd group delayed neutrons | % | 0.14 | | | Fraction of 3rd group delayed neutrons | % | 0.13 | | | Fraction of 4th group delayed neutrons | % | 0.27 | | | Fraction of 5th group delayed neutrons | % | 0.086 | | | Fraction of 6th group delayed neutrons | % | 0.017 | | | Decay constant of 1st group precursor | s−1 | 0.0256 | | | Decay constant of 2nd group precursor | s−1 | 0.14 | | | Decay constant of 3rd group precursor | s−1 | 0.13 | | | Decay constant of 4th group precursor | s−1 | 0.27 | | | Decay constant of 5th group precursor | s−1 | 0.086 | | | Decay constant of 6th group precursor | s−1 | 0.017 | | | Coupling coefficients | | | | () | Reactivity coefficient of fuel temperature | /°C | | | () | Reactivity coefficient of moderator temperature | /°C | | | | Reactivity coefficient of reflector temperature | /°C | | | | Porosity of the pebble-bed | | 0.39 |
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