Hydrogen Compressor Calculator
Calculate multi-stage compression requirements for hydrogen systems
Note:
The calculations provided by HyCalc are intended for preliminary estimates and scenario exploration. While we strive for accuracy, we recommend consulting qualified engineers for final system design, safety decisions, and regulatory compliance in your specific application.
How to Use This Calculator
Key Parameters Explained
Pressure Values
- Inlet Pressure: Initial hydrogen pressure at compressor intake (typically 20-30 bar for electrolyser output)
- Outlet Pressure: Required final pressure after compression (350-700 bar for storage)
Thermal Management
- Inlet Temperature: Hydrogen temperature before compression (ambient: 20-30°C)
- Max Discharge Temp: Safety limit for compressed gas temperature (typically ≤150°C)
Example Calculation
Typical Scenario
Compressing 100 kg/h hydrogen from 20 bar to 350 bar:
Inlet Pressure: 20 bar
Outlet Pressure: 350 bar
Result: 3 stages | 58.4 kW | Final Temp: 127°C
Important Considerations
- Multi-stage compression with intercooling improves efficiency
- Higher discharge temperatures reduce compressor lifespan
- Actual efficiency varies by compressor type (piston vs. diaphragm)
- Includes safety margin of 10% in power calculations
Safety Notes
Never exceed material temperature limits (check compressor specs)
Maintain pressure ratios below 4:1 per stage for safety
Technical Notes
- Calculations based on hydrogen specific heat ratio (γ = 1.405)
- Includes compressibility factor (Z = 0.9972) adjustments
- Assumes ideal gas behavior with isentropic efficiency
- Maximum 10 compression stages allowed