LNG FUEL GAS SUPPLY SYSTEM — IGF Code Part A-1

LNG TANKS & SUPPLY

PILOT OIL

TYPE C · 2 × 580 m³

PORT ● SUPPLY

P2.80

L68.5%

Tv-145°C

Tm-155°C

Tl-162°C

BOG0.18

STBD

P2.60

L72.0%

Tv-143°C

Tm-153°C

Tl-161°C

BOG0.15

SUPPLY CHAIN

Pump Discharge0.0barg

Vap Out Temp0°C

M/E Gas Press0.0bar

G/E Gas Press0.0bar

LNG PUMP

VFD 0%

Hi-GAS FGSS PROCESS SCHEMATIC

ALARM MANAGEMENT SYSTEM

ENGINE FUEL MODE

M/E X-DF PILOT

GE1 PILOT

GE2 PILOT

GE3 OFF

BOILER OFF

ACTIVE ALARMS

ANo active alarms

PIPELINE & EQUIPMENT STATUS

EQUIPMENT

LNG PumpOFF

VFD Speed0%

GW PumpOFF

GW HeaterOFF

VaporiserOFF

BOG HeaterOFF

VALVES

SuctionCLOSED

MGVCLOSED

DBBCLOSED

Supply NRVCLOSED

M/E NRVCLOSED

G/E NRVCLOSED

PRESSURES & FLOW

Tank P2.80 bar

Pump Out0.0 barg

M/E Rail0.0 bar

G/E Rail0.0 bar

BOG Route—

Bunkered0

ENGINE STATUS

M/E X-DFPILOT 75% · 0 kg/h

GE1 HiMSENPILOT 80% · 0 kg/h

GE2 HiMSENPILOT 80% · 0 kg/h

GE3 HiMSENOFF

Comp BoilerOFF

OPERATIONS LOG

--:--:--Hi-GAS FGSS ready. Select scenario.

FGSS PROCESS & INSTRUMENTATION DIAGRAM

FGSS LINE-UP

SYSTEM PARAMETERS

BOG Rate0.18 kg/h

Vap Pressure0.0 bar

M/E Gas Flow0 kg/h

G/E Gas Flow0 kg/h

Total Gas0 kg/h

VALVE LINEUP

STARTUP SEQUENCE

1. Start GW pump & heater

2. Open suction valve

3. Start LNG pump (VFD ramp)

4. Vaporiser ON · Open MGV/DBB

5. Switch M/E to GAS mode

PIPELINE COMPONENTS

GAS VALVE UNIT — X-DF MAIN ENGINE

GVU CONTROLS

GVU PRESSURES

Inlet Pressure0.0 bar

M/E Rail Pressure0.0 bar

G/E Rail Pressure0.0 bar

GVU StatusISOLATED

VALVE STATUS

MGV (Master Gas)CLOSED

DBB (Double Block)CLOSED

Supply NRVCLOSED

M/E NRVCLOSED

G/E NRVCLOSED

ESD STATUS

ESD TripNORMAL

BUNKERING MANIFOLD — SHIP-TO-SHORE CONNECTION

BUNKERING CONTROLS

OPERATION

StatusIDLE

Transfer Rate0 m³/hr

Volume Loaded0 m³

Time Elapsed00:00

CONTROLS

Loaded0 m³

TANK LEVELS

PORT Tank68.5%

STBD Tank72.0%

PORT Pressure2.80 bar

STBD Pressure2.60 bar

VALVE STATUS

Bunker ValveCLOSED

LNG FUEL TANKS — TYPE C · 2 × 580 m³

TANK CONTROLS

PORT TANK · 580 m³

Level68.5%

Pressure2.80 bar

Temp (Vapour)-145°C

Temp (Mid)-155°C

Temp (Liquid)-162°C

BOG Rate0.18 kg/h

STBD TANK · 580 m³

Level72.0%

Pressure2.60 bar

Temp (Vapour)-143°C

Temp (Mid)-153°C

Temp (Liquid)-161°C

BOG Rate0.15 kg/h

PUMP SELECTION

TEMPERATURE MONITORING — TANK INSULATION SPACES

FIXED GAS DETECTION SYSTEM — % LEL

DETECTOR STATUS

DETECTION ZONES — % LEL

Pump Room 0%

GVU Room 0%

Engine Room 0%

FGSS Room 0%

ESD INTEGRATION

ESD StatusNORMAL

1st Alarm Level20% LEL

2nd Alarm Level40% LEL

ESD Trip Level60% LEL

ACTIONS

PORTABLE GAS DETECTION INSTRUMENTS

LNG VAPORISER — SHELL & TUBE · GLYCOL WATER HEATED

VAPORISER CONTROLS

PROCESS VALUES

Outlet Temperature0°C

Outlet Pressure0.0 bar

LNG Inlet Flow0 kg/h

GW Inlet Temp25°C

GW Outlet Temp15°C

Vaporiser StatusOFF

GW HEATING SYSTEM

GW Pump StatusOFF

GW Heater StatusOFF

GW Temperature25°C

VAPORISER

BOG MANAGEMENT — HEATER & ROUTING

BOG CONTROLS

BOG HEATER

Heater StatusOFF

Heater Outlet Temp0°C

Heater Rating17 kW Electric

BOG ROUTING

Current Route—

BOG Flow0 kg/h

COMPOSITION BOILER

Boiler StatusOFF

RELIQUEFACTION — BOG COOLING SYSTEM

RELIQ CONTROLS

RELIQ UNIT STATUS

Unit StatusSTANDBY

Suction Temp—

Discharge Temp—

Reliq Rate0 kg/h

CONTROLS

NITROGEN GENERATION & SUPPLY

N₂ CONTROLS

N₂ SYSTEM STATUS

Generator StatusOFF

N₂ Pressure0.0 bar

N₂ Flow0 Nm³/h

Purity99.9%

INERTING / GAS-UP

O₂ Content21.0%

HC Content0.0%

NITROGEN DISTRIBUTION — INERTING & PURGE

SHORE / SUPPLY PIPELINES

SHORE CONNECTION CONTROLS

SHORE LINE STATUS

ConnectionDISCONNECTED

Line Pressure0.0 bar

Flow Rate0 m³/hr

MANIFOLD VALVES

Shore IsolationCLOSED

ERC ValveCLOSED

SHORE LNG STORAGE TANK