What this tool does
Provides a screening estimate of hydrogen pipeline pressure loss from line geometry, flow conditions, and roughness assumptions.
Pipeline Pressure Drop Calculator
When to use it
Use it for route comparison, rough compressor checks, and early line sizing. Do not use it as a substitute for hydraulic network modelling, transient analysis, or a code-compliant pipeline design package.
Key assumptions
- The model applies simplified steady-state flow logic for a single line segment.
- Pipe roughness, operating temperature, and pressure basis should be treated as planning assumptions unless validated for the actual route.
- Results are intended for screening-grade engineering, not final wall-thickness selection or operating philosophy definition.
- Default values are starter numbers and should be replaced with project-specific line data before external use.
Enter pipe geometry, flow conditions, and roughness. The tool solves the Colebrook-White equation iteratively for Darcy friction factor and assumes dry hydrogen at the stated pressure and temperature basis.
Pressure Drop Results
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Pressure Drop
mbar
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Pressure Drop
bar
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Pressure Drop
% of inlet
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Outlet Pressure
bar abs
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Flow Velocity
m/s
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Reynolds Number
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Pressure Profile Along Pipeline
Assuming isothermal flow. H2 viscosity ~9×10⁻⁶ Pa·s. Pressure profile shown at 20 equal segments.