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Document condenser realism and dashboard updates

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Codex Agent
2025-11-26 23:11:36 +01:00
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CONTEXT_NOTES.md
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# Session Context Notes # 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. - 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. - 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. - 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). - 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. - 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. - 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. - Coolant demand fixed: demand increases when primary outlet is above target (sign was flipped before), so hot loops ramp flow instead of backing off.

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FEATURES.md
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- **Coolant & hydraulics**: primary/secondary pumps with head/flow curves, power draw scaling, wear tracking; pressure floors tied to saturation; auxiliary power model with generator auto-start. - **Coolant & hydraulics**: primary/secondary pumps with head/flow curves, power draw scaling, wear tracking; pressure floors tied to saturation; auxiliary power model with generator auto-start.
- **Heat transfer**: steam-generator UA·ΔT_lm model with a pinch cap to keep the primary outlet hotter than the secondary, coolant heating uses total fission power with fuel heating decoupled from exchanger draw, and the secondary thermal solver includes passive cool-down plus steam-drum mass/energy balance with latent heat. - **Heat transfer**: steam-generator UA·ΔT_lm model with a pinch cap to keep the primary outlet hotter than the secondary, coolant heating uses total fission power with fuel heating decoupled from exchanger draw, and the secondary thermal solver includes passive cool-down plus steam-drum mass/energy balance with latent heat.
- **Pressurizer & inventory**: primary pressurizer trims toward 7 MPa with level tracking, loop inventories/levels steer flow availability, secondary steam boil-off draws down level with auto makeup, and pumps reduce flow/status to `CAV` when NPSH is insufficient. - **Pressurizer & inventory**: primary pressurizer trims toward 7 MPa with level tracking, loop inventories/levels steer flow availability, secondary steam boil-off draws down level with auto makeup, and pumps reduce flow/status to `CAV` when NPSH is insufficient.
- **Steam cycle**: three turbines with spool dynamics, throttle mapping, condenser back-pressure penalty, load dispatch to consumer, steam quality gating for output, generator states with batteries/spool, and steam enthalpy-driven availability readout on the dashboard. - **Steam cycle**: three turbines with spool dynamics, throttle mapping, condenser vacuum/back-pressure with fouling and cooling sink temperature, load dispatch to consumer, steam quality gating for output, generator states with batteries/spool, and steam enthalpy-driven availability readout on the dashboard.
- **Protections & failures**: health monitor degrading components under stress, automatic SCRAM on core or heat-sink loss, relief valves per loop with venting/mass loss and pump pressure caps, maintenance actions to restore integrity. - **Protections & failures**: health monitor degrading components under stress, automatic SCRAM on core or heat-sink loss, relief valves per loop with venting/mass loss and pump pressure caps, maintenance actions to restore integrity.
- **Persistence & ops**: snapshots auto-save/load to `artifacts/last_state.json`; dashboard with live metrics, protections/warnings, heat-exchanger telemetry, component health, and control shortcuts. - **Persistence & ops**: snapshots auto-save/load to `artifacts/last_state.json`; dashboard with live metrics, protections/warnings, heat-exchanger telemetry, component health, and control shortcuts.