INJ-00016 — jt_valve_stiction
Status: EXPIRED · Category: A · Source: auto Fired at: 71.35 h · Duration: 3.0 h · Target: NE-01 Economic impact: $-500 /h
Parameters
{
"plant_id": "NE-01",
"product": "LAR",
"customer_id": "C-08",
"truck_id": "T-E03",
"driver_id": "D-E06"
}Cascade — 10 agent steps
| # | step | agent | detail |
|---|---|---|---|
| 1 | INJECTION | Injection Engine | jt_valve_stiction: JT valve stem sticking causes pressure oscillations. HP column flooding at 83%. |
| 2 | MPC_SOLVE | MPC Optimizer | 📐 MPC: Optimal load 75% (4h horizon) | Priority: 3 | Expected margin: $0/h | Reason: All constraints healthy → optimize revenue (+load) |
| 3 | PHYSICS | Physics Kernel | JT valve controls HP→LP pressure letdown. Stiction causes cycling → flooding oscillations → separation quality degrades. Surge margin affected. |
| 4 | PRODUCTION | Production Agent | HOLD at 75%. Reducing load would worsen stiction (lower ΔP). Valve needs mechanical repair. |
| 5 | TANKS | Tank Inventory Agent | LOX at 60%, LIN at 61%. Flooding oscillations reduce liquid production efficiency by 5-10%. |
| 6 | DISPATCH | Dispatch Agent | Normal dispatch continues. Monitor GOX purity — flooding can cause O2 carryover. |
| 7 | CUSTOMERS | Customer Impact Agent | Purity risk: if flooding pushes O2 purity below 99.5%, semiconductor/medical customers cannot accept product. |
| 8 | LOSS_MITIGATION | Loss Ledger | 📉 L1: Primary Production Physical Balance — SENS detects JT stiction, schedules maintenance |
| 9 | ECONOMICS | Economics Agent | JT stiction reduces production efficiency ~5%. Revenue impact: -2-5k. Downtime: 2-4h. |
| 10 | RECOVERY | Recovery Planner | 1) Stroke JT valve to break stiction. 2) If persistent: isolate and repair valve trim. 3) Duration: 2-4h. 4) Post-repair: smooth pressure control restored. |
Raw effects
- JT stiction, HP flood +8% at NE-01
- jt_valve_stiction: JT valve stem sticking causes pressure oscillations. HP column flooding at 83%.
- 📐 MPC: Optimal load 75% (4h horizon) | Priority: 3 | Expected margin: $0/h | Reason: All constraints healthy → optimize revenue (+load)
- JT valve controls HP→LP pressure letdown. Stiction causes cycling → flooding oscillations → separation quality degrades. Surge margin affected.
- HOLD at 75%. Reducing load would worsen stiction (lower ΔP). Valve needs mechanical repair.
- LOX at 60%, LIN at 61%. Flooding oscillations reduce liquid production efficiency by 5-10%.
- Normal dispatch continues. Monitor GOX purity — flooding can cause O2 carryover.
- Purity risk: if flooding pushes O2 purity below 99.5%, semiconductor/medical customers cannot accept product.
- 📉 L1: Primary Production Physical Balance — SENS detects JT stiction, schedules maintenance
- JT stiction reduces production efficiency ~5%. Revenue impact: -2-5k. Downtime: 2-4h.
-
- Stroke JT valve to break stiction. 2) If persistent: isolate and repair valve trim. 3) Duration: 2-4h. 4) Post-repair: smooth pressure control restored.