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Update context notes after rod/xenon/HX changes

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Codex Agent
2025-11-23 11:49:55 +01:00
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CONTEXT_NOTES.md
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@@ -9,3 +9,13 @@
- Thermal updates: primary/secondary inlet temps now back-computed; when secondary flow is near zero, loops cool toward ambient over time. - Thermal updates: primary/secondary inlet temps now back-computed; when secondary flow is near zero, loops cool toward ambient over time.
- Meltdown threshold: 2873 K. Auto rod control clears shutdown when set to auto and adjusts rods. Control rod worth/tuning currently unchanged. - Meltdown threshold: 2873 K. Auto rod control clears shutdown when set to auto and adjusts rods. Control rod worth/tuning currently unchanged.
- Tests: `pytest` passing after all changes. Key regression additions include generator manual mode, turbine no-steam output, auto rod control, and passive cool-down. - Tests: `pytest` passing after all changes. Key regression additions include generator manual mode, turbine no-steam output, auto rod control, and passive cool-down.
- Coolant demand fixed: demand increases when primary outlet is above target (sign was flipped before), so hot loops ramp flow instead of backing off.
- Pump spin-down: pressure/flow ramp down over pump spool time with STOPPING->OFF threshold at 0.1 kg/s; prevents instant drop when last pump stops.
- Steam pressure display shows 0 unless steam quality ≥0.05 and flow ≥100 kg/s to avoid showing pump head as steam pressure.
- Passive cool-down: when secondary flow ~0, loops cool toward ambient; primary inlet/outlet back-propagated from transferred heat and ambient.
- Relief valves: l (primary) and ; (secondary) clamp loop pressure to saturation when open; status displayed per loop.
- Generator behavior: starting/running only produce power when load is present; auto off by default; manual toggles b/v; auto stops with no load; base aux drops to 0 when idle/cold.
- Pressure tying: loop pressure floors to saturation(temp) when pumps off; pump targets aim for ~7 MPa nominal RBMK-like setpoints.
- Turbines: require meaningful steam flow/quality; otherwise zero output. Steam supply pressure in turbine panel reads 0 when no steam.
- Rod control now supports three banks with weighted worth; xenon/iodine tracked with decay and burn-out; new UA·ΔT_lm steam-generator model and pump head/flow curves.
- Dashboard shows heat-exchanger ΔT/efficiency and protections; pumps and HX changes documented in FEATURES.md / TODO.md.