Research Article
CATHARE Assessment of Natural Circulation in the PKL Test Facility during Asymmetric Cooldown Transients
Table 6
Primary side steady-state results versus measurements for all runs.
| | Primary circuit | EXP.RUN-1 | CALC.RUN-1 | EXP.RUN-2 | CALC.RUN-2 | EXP.RUN-3 | CALC.RUN-3 |
| | Pressure (bar) | 40 | 40 | 40 | 40 | 40 | 40 | | Bundle power (kW) | 642 | 642 | 642 | 642 | 642 | 642 | | Core outlet Temp (°C) | 243 | 244.0 | 241.5 | 244.5 | 241.1 | 244.5 | | Cold leg Temp 1–3 (°C) | 239–243 | 235 | 240. 0 | 237.5 | 213.0 | 237.5 | | Cold leg Temp 2–4 (°C) | 215. | 222.2 | 213. 0 | 215.1 | 213.0 | 215.1 | | Subcooling at core outlet (°C) | 5 | 6 | 6 | 7 | 7 | 7 | | Loop 2–4 mass flow rate (kg/s) | 1.35–1.45 | 1.3 | 1.41–1.38 | 1.38–1.39 | 1.4 | 1.38–1.39 | | Loop 1–3 mass flow rate (kg/s) | 0.73–0.8 | 1.0 | 0.72–0.77 | 0.73–0.74 | 0.75 | 0.73–0.74 | | Pressurizer water level (m) | 4.0 | 4.15 | 4.1 | 4.15 | 4.1 | 4.15 |
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