Morning-review point 3 result: tight-entry heatup PJ reach with
Q_sg in [0, 5% P0] as a bounded parameter (augmented state x[10]).
T=60s: 7042 sets in 394s — T_c in [270.97, 291.0] — low-trip × loose
T=300s: 100k sets budget exhausted in 5400s —
T_c in [219.4, 316.3] — low-trip × loose
Compared to the no-disturbance tight-entry run (all 6 halfspaces at
300s, T_c in [281.05, 291.0]), the bounded steam-dump disturbance
costs the low-T_avg-trip discharge even at 60s. Physically correct
— steam dump pulls heat through secondary, cascades into cold-leg
and T_avg. The reach tube accurately captures this coupling.
Thesis-relevant finding: without modeled disturbance bounds, reach
tubes are over-optimistic. Quantifies how much of the prior
"all 6 halfspaces" result came from Q_sg=0 simplification vs.
actual controller robustness.
Results saved to results/reach_heatup_pj_with_steam_dump.mat.
Journal entry updated with the per-horizon table + decision box on
what this means for thesis claims.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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