๐ง Hydrogen Cryogenic Liquefaction (Claude)
Size cryogenic hydrogen liquefaction plants: Specific Energy Consumption (SEC in kWh/kg LH2), exergy efficiency (% Carnot), Claude expansion turbines, and ortho-para conversion.
โก Fortran 90 Engine
Double Precision (IEEE 754)
โ ISO / ASME Validated
Thermodynamics
๐ Solver Telemetry
โ ACTIVE
๐๏ธ Views
37
โก Solves
28
๐พ Downloads
500
๐ฆ Fortran Code
11.4 KB
๐
Released
Jun 2026
โฑ๏ธ Latency
< 1 ms
๐ง Hydrogen Cryogenic Cascade (20 K), Ortho-Para Catalysts & Claude Turbines
Real-time visual simulation: Multi-stage H2 compression, LN2 cold box precooling, catalytic reactors, and cryogenic expansion๐ Configuration & Presets
๐ญ Industrial 50 TPD LH2 Plant
๐ Rocket Spaceport Propellant
๐ Heavy Mobility Refueling Hub
โ๏ธ High-Exergy Multi-Turbine Loop
Claude Hydrogen Liquefaction Formulation:
โข Specific Energy Consumption: SEC = Wฬnet / แนLH2 [kWh/kg LHโ]
โข Ideal Carnot Work: WCarnot = 3.92 kWh/kg LHโ (including ortho-to-para conversion)
โข Exergy Efficiency: ฮทexergy = WCarnot / SEC [%]
โข Continuous Catalytic Ortho-to-Para conversion prevents boil-off loss in storage.
โข Specific Energy Consumption: SEC = Wฬnet / แนLH2 [kWh/kg LHโ]
โข Ideal Carnot Work: WCarnot = 3.92 kWh/kg LHโ (including ortho-to-para conversion)
โข Exergy Efficiency: ฮทexergy = WCarnot / SEC [%]
โข Continuous Catalytic Ortho-to-Para conversion prevents boil-off loss in storage.
๐ LH2 Plant Performance
Configure inputs and click Compute to view results.
๐ Calculation Methodology & Cryogenic H2 Standards
Precooled Claude Cycle with Turbo-Expanders
Combines liquid nitrogen ($LN_2$) precooling down to $80\,\text{K}$ with cryogenic Claude expansion turbines generating refrigeration below $40\,\text{K}$ before final Joule-Thomson expansion to $20.3\,\text{K}$.
Essential Ortho-to-Para Catalytic Conversion
Normal $H_2$ at room temperature is $75\%$ ortho and $25\%$ para. At $20\,\text{K}$, equilibrium is $99.8\%$ para. Catalytic reactors remove the exothermic conversion heat ($527\,\text{kJ/kg}$) during liquefaction to prevent spontaneous storage boil-off.
Key Engineering Assumptions
- Multi-stage intercooled hydrogen reciprocating or centrifugal compressors.
- Equilibrium para-hydrogen concentration $\ge 99.5\%$ at liquid storage exit.
- Applicable to commercial green hydrogen liquefiers, spaceport rockets, and heavy transport hubs.