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Document condenser realism and dashboard updates

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2025-11-26 23:11:36 +01:00
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CONTEXT_NOTES.md
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# Session Context Notes
- Reactor model: two-loop but tuned to RBMK-like pressures (nominal ~7 MPa for both loops). Loop pressure clamps to saturation baseline when pumps are off; pumps ramp flow/pressure over spool time when stopping or starting.
- Turbines: produce zero output unless steam quality is present and effective steam flow is >10 kg/s. Turbine panel now shows steam availability (enthalpy × quality × mass flow) and steam enthalpy instead of loop pressure.
- Turbines: produce zero output unless steam quality is present and effective steam flow is >10 kg/s. Turbine panel shows steam availability (enthalpy × quality × mass flow) and steam enthalpy instead of loop pressure; condenser pressure/temperature/fouling shown with nominal bounds.
- Generators: two diesel units, rated 50 MW, spool time 10s. Auto mode default `False`; manual toggles b/v. Auto stops when no load. Relief valves toggles l (primary) / ; (secondary) and displayed per loop.
- Pumps: per-unit controls g/h (primary), j/k (secondary). Flow/pressure ramp down over spool when pumps stop. Pump status thresholds use >0.1 kg/s to show STOPPING.
- Maintenance hotkeys: p (core, requires shutdown), m/n (primary 1/2), ,/. (secondary 1/2), B/V (generator 1/2), y/u/i (turbine 1/2/3).
- Dashboard: two-column layout, trends panel for fuel temp and core power (delta and rate). Power Stats show aux demand/supply, generator and turbine output. Turbine panel shows steam availability/enthalpy instead of loop pressure. Core/temp/power lines include nominal/max.
- Thermal updates: primary/secondary inlet temps now back-computed; when secondary flow is near zero, loops cool toward ambient over time. Relief venting removes mass/enthalpy with a multi-second ramp toward ~1 MPa and quenches superheat toward target-pressure saturation. Pumps cap target pressure when reliefs are open.
- Thermal updates: primary/secondary inlet temps now back-computed; when secondary flow is near zero, loops cool toward ambient over time. Relief venting removes mass/enthalpy with a multi-second ramp toward ~1 MPa and quenches superheat toward target-pressure saturation. Pumps cap target pressure when reliefs are open. Condenser modeled with vacuum pump drawdown, cooling-sink temperature, and fouling-driven back-pressure penalty.
- 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.
- Coolant demand fixed: demand increases when primary outlet is above target (sign was flipped before), so hot loops ramp flow instead of backing off.