RCAIDE.Library.Attributes.Propellants.Gaseous_Hydrogen

Gaseous_Hydrogen

class Gaseous_Hydrogen(*args, **kwarg)

Bases: Propellant

A class representing gaseous hydrogen (H2) fuel properties for propulsion applications.

tag

Identifier for the propellant (‘hydrogen_gas’)

Type:

str

reactant

Oxidizer used for combustion (‘O2’)

Type:

str

specific_energy

Specific energy content in J/kg (141.86e6)

Type:

float

energy_density

Energy density in J/m³ (5591.13e6)

Type:

float

max_mass_fraction

Maximum fuel-to-oxidizer mass ratios

• Airfloat

  Maximum mass fraction with air (0.013197)

• O2float

  Maximum mass fraction with pure oxygen (0.0630)

Type:

Data

molecular_mass

Molar mass in kg/kmol (2.016)

Type:

float

gas_constant

Specific gas constant in J/kg-K (4124.0)

Type:

float

pressure

Storage pressure in Pa (700e5)

Type:

float

temperature

Reference temperature in K (293.0)

Type:

float

compressibility_factor

Gas compressibility factor (1.4699)

Type:

float

density

Gas density at reference conditions in kg/m³ (39.4116)

Type:

float

Notes

This class implements properties for gaseous hydrogen fuel at high pressure storage conditions. Properties account for real gas behavior through the compressibility factor.

Definitions

‘Compressibility Factor’

Correction factor for real gas behavior deviation from ideal gas law

‘Specific Energy’

Energy content per unit mass, significantly higher than hydrocarbon fuels

‘Max Mass Fraction’

Maximum fuel fraction for stoichiometric combustion with different oxidizers

Major Assumptions

• Real gas behavior is accounted for via compressibility factor