LH₂ CRYOGENIC SYSTEM
Transfer Pumps (Cryogenic Centrifugal)
Cryogenic Valves
BOG Compressor / Recondenser
LH₂ Level / Fill Rate
0.0 m³/h
Cool-Down Status
Rate (target ≤3°C/h)
0.0 °C/h
Spray Rate
0.0 kg/min
MANIFOLD ISOLATION
P&ID — LH₂ VACUUM-INSULATED TANK SYSTEM (IGC CH.15)
ALARM MANAGEMENT — IGC CODE
IGC Code §16 — ESD closes all cryo valves, trips pumps
▦ PIPELINE LINE-UP
CLICK TO EXPAND
ALARM LIST (click to ACK)
GAS DETECTION — H₂ %LEL (LEL: 4%) + VACUUM
Vacuum Jacket Integrity (Target <100 µPa)
MLI Performance
EXCELLENT
Jacket Alarm
NORMAL
Ortho-Para Converter
Para-H₂ Content
99.2%
Converter Temp
−253°C
Conv. Efficiency
97.8%
BOG ROUTING / SCENARIO / TREND
BOG Flow Routing
RE-LIQUEFACTION — BOG COMPRESSOR ACTIVE
SHIP FUEL — H₂ COMBUSTION ENGINE
VENT TO ATMOSPHERE — VENT MAST (emergency only)
SELECT SCENARIO
Choose a training scenario from the startup modal.
H₂ UNIQUE HAZARDS / FIRE DETECTION
H₂ Specific Hazard Profile (IGC Ch.15)
INVISIBLE FLAME — use UV/IR thermal camera for detection
HIGH BUOYANCY — rapid upward dispersal, sensor at ceiling
EMBRITTLEMENT — hydrogen embrittlement of steels/seals
DEEP CRYOGENIC BURNS at −253°C — cryogenic PPE required
LFL 4% / UFL 75% — wide flammability range
Odourless & colourless — sensor-only detection essential
Fire Detector Status
Relief Valve Status
PSV-1 Set Pressure
1.50 bar
PSV-1 Status
CLOSED
Vent Mast H₂ %
0.0%
Inerting System (He/N₂)
He preferred for initial inert; N₂ for pre-loading purge