Key Technical Specifications
Preliminary specifications. Final values depend on the selected configuration, operating profile, ambient conditions, integration architecture, and applicable certification requirements.
Fuelture develops configurable hydrogen fuel cell power systems for compact mobility, robotics, and distributed power applications. The platform covers 200 W to 4 kW of continuous output and can combine fuel cell generation with low pressure metal hydride hydrogen storage and electrical energy storage.
| Parameter | Preliminary Specification | Configuration Notes |
|---|---|---|
| Continuous rated power | 200 W to 4,000 W | Final rating and operating envelope depend on the application. |
| Peak power | Stack: 120% of rated power System: up to 300% of rated power | Specify peak duration, duty cycle, starting battery state of charge, and allowable voltage range. |
| Specific power | Stack: about 1 kW/kg System: about 1.5 kW/kg | System value includes the controller and DC/DC converter. |
| System specific energy | About 16 kWh/kg | Value may vary with the application, duty cycle, and environment. |
| Cooling | Air cooled or liquid cooled | Architecture is selected according to power level and application. |
| Operating temperature | -20 °C to +50 °C | Ambient operating range. |
| Peak acoustic level | About 30 dB at 1 m | Depends on power and environment. Liquid cooled systems are generally quieter. |
| Output voltage | 24 V to 65 V | Specify nominal voltage, allowable range, ripple, and regulation. |
| Stack service life | Air cooled: more than 2,500 h Liquid cooled: more than 9,000 h | End of life criterion: output power remains above 70% of initial power. |
The storage subsystem uses a low pressure metal hydride medium. Vessel size, thermal management, charge and discharge conditions, and compliance requirements are finalized for each application.
| Parameter | Preliminary Specification | Configuration Notes |
|---|---|---|
| Storage technology | Solid state metal hydride | Confirm operating pressure and temperature for the selected material and vessel. |
| Internal pressure | About 2 MPa | Nominal value at room temperature. |
| Operating temperature | Charging: 10 °C to 20 °C Discharging: 20 °C to 40 °C | Define the pressure and temperature ranges for charging and discharging. |
| Hydrogen per 1 L cylinder | About 50 g | Actual capacity depends on the storage material, vessel design, and regulatory constraints. |
| 1 L cylinder tare mass | About 5 kg | Includes storage alloy, vessel, valves, thermal hardware, and fittings. |
| Cylinder volume | 0.5 L to 5 L | Customizable dimensions for the application. |
| Hydrogen purity | 99.99% | Confirm the fuel quality requirement for the selected stack. |
| Cycle life | More than 3,000 cycles | Reactivation may be required following severe operating or storage conditions. |
Target Applications
Configuration Inputs
To define a production configuration, please provide: load profile, required runtime, nominal bus voltage, ambient temperature range, cooling constraints, available space and mass, hydrogen refueling conditions, communications interfaces, and applicable certification requirements.
Document status: preliminary technical handout. Values are subject to application-specific engineering review, verification, and final configuration control.
