Parameters of Detonation of Hydrogen-Air Mixtures with Partly Dissociated Components
A. A. Vasil'ev1,2, V. A. Vasiliev1
1Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: hydrogen power engineering, fuel-oxygen mixtures, fuel-air mixtures, dissociated components, ignition delay, kinetic data for detonation, explosion safety, hot air
Abstract
Numerical data on chemically equilibrium parameters of detonation of a stoichiometric hydrogen-air mixture and the same mixture with partly dissociated components are reported. It is found that the dissociated components (hydrogen, oxygen, and nitrogen atoms) produce a significant effect on the system parameters, especially on reduction of the critical energy of detonation initiation. As the fraction of atomic nitrogen in the hydrogen-air system increases, its explosion hazard also increases, and the initiation energy becomes even smaller than the critical energy of detonation initiation in the hydrogen-oxygen mixture. The system parameters for heated air are analyzed.
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