Table 2
MSFR geometric, operational and physical parameters.
| Parameter | Symbol | Value | Parameter | Symbol | Value |
|---|---|---|---|---|---|
| Geometric and operational parameters | |||||
| Core length | LC | 1.9 m | Reactor thermal power | Qreactor | 3000 MWth |
| Core radius | RC | 1.23 m | Fuel mass flow rate | – | 29703 kg s−1 |
| Hot leg length | LHL | 0.65 m | Intermediate mass flow rate | – | 28458 kg s−1 |
| Hot leg radius | RHL | 0.15 m | Number of sectors | – | 16 |
| IHX length | LHX | 0.52 m | Core inlet temperature | Tcore_in | 675 °C |
| Cold leg length − vertical | LCLV | 1.38 m | Core outlet temperature | Tcore_out | 775 °C |
| Cold leg radius − vertical | RCLV | 0.15 m | Intermediate salt IHX inlet temp. | Tint_min | 670 °C |
| Cold leg length − horizontal | LCLH | 0.65 m | Intermediate salt IHX outlet temp. | Tint_max | 600 °C |
| Cold leg radius − horizontal | RCLH | 0.15 m | Extrapolation Length | 0.10 m | |
| Neutronic parameters | |||||
| DNP fraction − group 1 | β1 | 12.3 × 10−5 | DNP decay constant − group 1 | λ1 | 0.0125 s−1 |
| DNP fraction − group 2 | β2 | 71.4 × 10−5 | DNP decay constant − group 2 | λ2 | 0.0283 s−1 |
| DNP fraction − group 3 | β3 | 36.0 × 10−5 | DNP decay constant − group 3 | λ3 | 0.0425 s−1 |
| DNP fraction − group 4 | β4 | 79.4 × 10−5 | DNP decay constant − group 4 | λ4 | 0.133 s−1 |
| DNP fraction − group 5 | β5 | 147.4 × 10−5 | DNP decay constant − group 5 | λ5 | 0.292 s−1 |
| DNP fraction − group 6 | β6 | 51.5 × 10−5 | DNP decay constant − group 6 | λ6 | 0.666 s−1 |
| DNP fraction − group 7 | β7 | 46.6 × 10−5 | DNP decay constant − group 7 | λ7 | 1.63 s−1 |
| DNP fraction − group 8 | β8 | 15.1 × 10−5 | DNP decay constant − group 8 | λ8 | 3.55 s−1 |
| DNP fraction − total | β | 459.7 × 10−5 | Neutron generation time | Λ | 6.65 × 10−7 s |
| Doppler feedback coefficient | αT | –1.46 pcm K−1 | Density feedback coefficient | αdens | –2.91 pcm K−1 |
| Decay heat parameters | |||||
| DH fraction − group 1 | f1 | 0.0117 | DH decay constant − group 1 | λDH,1 | 0.01973 s−1 |
| DH fraction − group 2 | f2 | 0.0129 | DH decay constant − group 2 | λDH,2 | 0.0168 s−1 |
| DH fraction − group 3 | f3 | 0.0186 | DH decay constant − group 3 | λDH,3 | 3.58 × 10−4 s−1 |
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