FUEL CELL POWER SYSTEM — SOLAS

FUEL CELL STACKS

STACK 1 — PEM 200kW STANDBY

0 kW

Voltage0V

Temp25°C

Stack Health:

95.0%

STACK 2 — PEM 200kW STANDBY

0 kW

Voltage0V

Temp25°C

Stack Health:

92.0%

SYSTEM SCHEMATIC — FUEL CELL POWER TRAIN

ENVIRONMENTAL METRICS

CO₂ Emissions:0.00 g/kWh

Water Output:0.0 L/h

H₂ Consumed:0.0 kg/h

Total Runtime:00:00:00

ALARM MANAGEMENT SYSTEM

Per SOLAS II-1/D — ESD activates fuel isolation and stack shutdown

ANo active alarms

POWER OUTPUT

0 kW

of 400 kW rated

System Summary

Stack 1: STANDBY
Stack 2: STANDBY
H₂ Press: 2.50 bar
Ship Bus: OFFLINE

POWER OUTPUT TREND

SCENARIO / OPERATIONS LOG

NORMAL OPERATIONS

All systems nominal. Select scenario to begin.

--:--:--System ready. Select scenario.

FUEL CELL STACK — CELL-LEVEL MONITORING

STACK CONTROLS

STACK 1 — PEM 200kW

Output Power0 kW

Stack Voltage0 V

Stack Current0 A

Cell Temp25 °C

Efficiency0 %

Health95.0 %

1. Pre-check

2. Purge

3. Conditioning

4. Ramp-up

5. Full Power

STACK 2 — PEM 200kW

Output Power0 kW

Stack Voltage0 V

Stack Current0 A

Cell Temp25 °C

Efficiency0 %

Health92.0 %

1. Pre-check

2. Purge

3. Conditioning

4. Ramp-up

5. Full Power

STACK ACTIONS

PEM ELECTROCHEMISTRY

Anode: H₂ → 2H⁺ + 2e⁻
Cathode: ½O₂ + 2H⁺ + 2e⁻ → H₂O
Net: H₂ + ½O₂ → H₂O + Power + Heat
Efficiency: ~55% electrical (LHV)
Rated: 200 kW per stack · 400 kW total

H₂ FUEL SUPPLY — P&ID

FUEL SUPPLY CONTROLS

HYDROGEN SUPPLY

Supply Pressure2.50 bar

Flow Rate0.0 kg/h

H₂ Purity99.97 %

Supply Temp20 °C

PRESSURE REGULATION

PRV Set Point5.0 bar

Regulator Out2.50 bar

Low Alarm1.5 bar

ESD Trip0.8 bar

FUEL VALVES

Master Fuel Valve

Stack 1 Isolation

Stack 2 Isolation

Purge Valve

H₂ TANK / CYLINDER BANK

Storage Pressure350 bar

Usable Capacity87 %

Remaining H₂174 kg

Est. Endurance-- h

AIR SUPPLY SYSTEM — CATHODE FEED

AIR SUPPLY CONTROLS

AIR COMPRESSORS

Compressor 1ONLINE

Compressor 2STANDBY

Discharge Press1.8 bar

Inlet Flow0.0 kg/s

AIR QUALITY

Inlet Temp20 °C

Relative Humidity60 %

Filter ΔP0.05 bar

O₂ Content20.9 %

CATHODE EXHAUST

Exhaust Temp-- °C

Exhaust Humidity-- %

H₂O Recovery0.0 L/h

COMPRESSOR CONTROLS

COOLING SYSTEM — THERMAL MANAGEMENT

COOLING CONTROLS

COOLANT TEMPERATURES

Coolant In Temp60 °C

Coolant Out Temp72 °C

ΔT (Stack)12 °C

HEX Efficiency-- %

COOLANT PUMPS

Pump 1RUNNING

Pump 2STANDBY

Flow Rate0 L/min

System Pressure1.2 bar

HEAT EXCHANGER

SW Inlet Temp28 °C

SW Outlet Temp35 °C

SW Flow Rate-- L/min

Fouling Factor0.12

TEMPERATURE ALARMS

High Temp Warn75 °C

High Temp Trip80 °C

Low Flow Alarm30 L/min

PUMP CONTROLS

WATER MANAGEMENT — MEMBRANE HUMIDIFICATION

WATER MANAGEMENT CONTROLS

MEMBRANE HUMIDITY

Stack 1 RH-- %

Stack 2 RH-- %

Target RH85 %

Min Alarm RH70 %

WATER PRODUCTION

Stack 1 Output0.0 L/h

Stack 2 Output0.0 L/h

Total Water0.0 L/h

Accum. Volume0.0 L

HUMIDIFIER

Humidifier 1AUTO

Humidifier 2AUTO

Drain ValveCLOSED

Water Tank Level-- %

DRAIN CONTROLS

POWER CONDITIONING — DC/DC CONVERTERS & INVERTER

ELECTRICAL CONTROLS

DC BUS — STACK 1

DC Voltage0 V

DC Current0 A

DC Power0 kW

Converter Eff.-- %

DC BUS — STACK 2

DC Voltage0 V

DC Current0 A

DC Power0 kW

Converter Eff.-- %

INVERTER — DC/AC

Output Voltage440 V

Frequency50 Hz

Total AC Power0 kW

Power Factor0.98

Inverter Eff.-- %

SHIP POWER BUS

Bus Voltage440 V

Bus StatusOFFLINE

Grid Sync--

Shore PowerOFFLINE

LOAD MANAGEMENT

Load Set Point

Load %0 %

H₂ GAS DETECTION SYSTEM — FIXED DETECTORS

GAS DETECTION CONTROLS

DETECTOR READINGS — % LEL

Stack Room0.0 % LEL

Fuel Prep Room0.0 % LEL

H₂ Tank Bay0.0 % LEL

Compressor Room0.0 % LEL

Deck (Topside)0.0 % LEL

ALARM THRESHOLDS (H₂)

Level 1 Alarm20 % LEL

Level 2 / ESD40 % LEL

Combustion Range4 – 75 % vol

DETECTOR STATUS

Det-1 (Stack Room)NORMAL

Det-2 (Fuel Prep)NORMAL

Det-3 (Tank Bay)NORMAL

Det-4 (Comp Room)NORMAL

Det-5 (Deck)NORMAL

DETECTION ACTIONS

BALANCE OF PLANT — AUXILIARY SYSTEMS

BOP CONTROLS

VENTILATION

Stack Room Fan 1RUNNING

Stack Room Fan 2STANDBY

Air Changes / Hr-- ACH

Exhaust FanRUNNING

CONTROL POWER

UPS StatusMAINS

Battery SOC95 %

24V DC Bus24.1 V

Control PowerNORMAL

MISCELLANEOUS

Stack Room Temp-- °C

Nitrogen PurgeREADY

Fire SuppressionARMED

Bilge LevelLOW

BOP ACTIONS

SHORE CONNECTION — H₂ BUNKERING & POWER INTERFACE

SHORE CONTROLS

H₂ BUNKERING CONNECTION

Coupling StatusDISCONNECTED

Shore Supply Press-- bar

Transfer Rate-- kg/h

Bunkering ModeINACTIVE

SHORE POWER

Shore PowerOFFLINE

Shore Voltage-- V

Shore Frequency-- Hz

BreakerOPEN

BUNKERING CHECKLIST

01. Pre-transfer inspection

02. Coupling connected / tested

03. ESD link verified

04. Purge line with N₂

05. Pressure test complete

06. Transfer in progress

07. Close & vent residuals

08. Disconnect coupling

BUNKERING ACTIONS