Detailed and Reduced Mechanisms of Jet a Combustion at High Temperatures

Abstract

For the Computational Fluid Dynamics (CFD) modeling of combustion and detonation of Jet A aviation fuel it is necessary to use the simplest kinetic mechanism that accurately describes the essential relevant phenomena. A surrogate that demonstrated good agreement with the parent fuel in the detonation process was chosen. A detailed kinetic mechanism was elaborated using a multilevel approach. A reduced mechanism was derived from the detailed mechanism for use in the CFD simulation of real detonation processes in combustors.

Keywords:

• Combustion
• Detailed and reduced kinetic mechanisms
• Detonation
• Jet A kerosene
• Modeling
• Surrogate

This work was performed under partial financial support of the IPP Project ANL-T2-220-RU, sponsored by the U.S. Department of Energy IPP Program.

Notes

Reaction rates are expressed in form k = ATⁿ exp(− Ea/RT), where A (cm³/molec/s) is the pre-exponential factor, Ea (kcal/mol) is activation energy, R (cal/mol/K) is the ideal gas constant, T (K) is temperature.

Reaction rates are expressed in form k = ATⁿexp(− Ea/RT), where A (cm, molec, s) is the pre-exponential factor, Ea (kcal/mol) is activation energy, R (cal/mol/K) is the ideal gas constant, and T (K) is temperature.