NONEQUILIBRIUM COMBUSTION MODEL FOR FUEL-RICH GAS GENERATORS

The efflux composition characteristics of an experimental fuel-rich ga s generator have been modeled with a detailed hydrocarbon kinetics pac kage that includes the effects of liquid droplet vaporization. The che mical reaction mechanism, consisting of 107 chemical species and 642 r eversible reactions, is capable of describing a complex kerosene-type fuel mixture for the case where the constituents (aliphatic, aromatic content) can be specified. A liquid fuel droplet vaporization model fo r octane and toluene mixtures has been included. A flame zone model is incorporated to address the fast reaction phenomena necessary for sus tained combustion. Successful modeling has necessitated the use of a n onequilibrium approach incorporating a detailed chemical model. Compar ison of modeling results to experimental data has shown good agreement , clearly supporting nonequilibrium operation.