🔧 Module 3: System Components
Complete System Architecture
A fuel cell system requires many supporting components beyond the stack itself:
- Hydrogen Subsystem: Tank, pressure regulator, valves, sensors
- Air Management: Blower/compressor, filter, humidifier
- Thermal Management: Cooling loop, radiator, pump
- Water Management: Separator, drain valves
- Power Electronics: DC-DC converters, motor controller
- Control System: ECU with sensors and safety interlocks
Golf Cart System Specifications
| Component | Specification | Power |
|---|---|---|
| Fuel Cell Stack | 48V, 2-3 kW continuous | N/A (source) |
| Hâ‚‚ Storage Tank | Type IV, 700 bar, 1-2 kg capacity | - |
| Air Blower | 12V brushless, 100-200W | 100-200W |
| Cooling Pump | 12V centrifugal, 50-100W | 50-100W |
| DC-DC Converter | 48V, 3 kW, 93-96% eff | ~100W loss |
| Hybrid Battery | 48V Li-ion, 20Ah | N/A (buffer) |
| Motor Controller | 48V, 5-7 kW peak | ~100W loss |
| Electric Motor | 48V, 5 kW continuous | Variable |
Parasitic Power Load
Auxiliary systems consume 200-400W during operation (10-15% of stack output). This must be factored into efficiency calculations.