RCAIDE.Library.Attributes.Propellants.Jet_A

Jet_A#

class Jet_A(*args, **kwarg)[source]#

Bases: Propellant

A class representing Jet A aviation kerosene fuel properties and emissions characteristics.

tag#

Identifier for the propellant (‘Jet_A’)

Type:

str

reactant#

Oxidizer used for combustion (‘O2’)

Type:

str

density#

Fuel density in kg/m³ (820.0)

Type:

float

specific_energy#

Specific energy content in J/kg (43.02e6)

Type:

float

energy_density#

Energy density in J/m³ (35276.4e6)

Type:

float

lower_heating_value#

Lower heating value in J/kg (43.24e6)

Type:

float

max_mass_fraction#
Maximum fuel-to-oxidizer mass ratios
  • Airfloat

    Maximum mass fraction with air (0.0633)

  • O2 : float

Maximum mass fraction with pure oxygen (0.3022)

Type:

Data

use_high_fidelity_kinetics_model#

Flag for using detailed chemical kinetics (True)

Type:

bool

fuel_surrogate_chemical_properties#
Simplified surrogate composition
  • N-C12H26float

    Dodecane fraction (0.6)

  • A1CH3float

    Toluene fraction (0.2)

  • A1float

    Benzene fraction (0.2)

Type:

dict

fuel_chemical_properties#

Detailed chemical composition for high-fidelity model

Type:

dict

emission_indices#
Emission indices in kg/kg fuel
  • Productionfloat

    CO2 production rate (0.4656)

  • CO2float

    Carbon dioxide (3.16)

  • COfloat

    Carbon monoxide (0.00201)

  • H2Ofloat

    Water vapor (1.34)

  • SO2float

    Sulfur dioxide (0.0012)

  • NOxfloat

    Nitrogen oxides (0.01514)

  • Sootfloat

    Particulate matter (0.0012)

Type:

Data

global_warming_potential_100#
100-year global warming potentials
  • CO2float

    Carbon dioxide (1)

  • H2Ofloat

    Water vapor (0.06)

  • SO2float

    Sulfur dioxide (-226)

  • NOxfloat

    Nitrogen oxides (52)

  • Sootfloat

    Particulate matter (1166)

  • Contrailsfloat

    Contrail formation (11)

Type:

Data

Notes

This class implements properties for Jet A aviation kerosene, including both simplified and detailed chemical kinetics options. Properties are specified at standard conditions (15°C, 1 atm).

Definitions

‘Emission Index’

Mass of pollutant produced per mass of fuel burned

‘Global Warming Potential’

Relative measure of heat trapped in atmosphere compared to CO2

‘Surrogate Model’

Simplified three-component representation of complex fuel mixture

Major Assumptions

  • Properties are for standard temperature and pressure conditions (15C, 1atm)

  • Surrogate model uses three-component representation

  • Detailed model includes complex hydrocarbon mixture

  • Emission indices are for typical aircraft cruise conditions

References

[1] D.S. Lee, D.W. Fahey, A. Skowron, M.R. Allen, U. Burkhardt, Q. Chen, S.J. Doherty, S. Freeman, P.M. Forster, J. Fuglestvedt, A. Gettelman, R.R. De León, L.L. Lim, M.T. Lund, R.J. Millar, B. Owen, J.E. Penner, G. Pitari, M.J. Prather, R. Sausen, L.J. Wilcox, “The contribution of global aviation to anthropogenic climate forcing for 2000 to 2018,” Atmospheric Environment, Volume 244, 2021, 117834, ISSN 1352-2310, https://doi.org/10.1016/j.atmosenv.2020.117834. [2] Chevron Products Company. (n.d.). Aviation fuels. Chevron. https://www.chevron.com/-/media/chevron/operations/documents/aviation-tech-review.pdf