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>Kinetic Mechanisms of Initiating Hydrogen-Oxygen Mixture Combustion through the Excitation of Electronic Degrees of Freedom of Molecular Oxygen by Laser Radiation
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Kinetic Mechanisms of Initiating Hydrogen-Oxygen Mixture Combustion through the Excitation of Electronic Degrees of Freedom of Molecular Oxygen by Laser Radiation
Kinetic mechanisms resulting in the enhancement of combustion of H_2 + O_2 mixtures when O_2 molecules are excited to the a~1Δ_g and b~1∑_g~+ states with laser radiation (λ = 1.268 and 0.762μm) are analyzed. It is shown that the excitation of O_2 molecules by the laser radiation leads to the appearance of new O, H, and OH formation channels; promotes the ignition of the starting mixture; and reduces the self-ignition temperature. With initial pressures in the range P_0 = 10~3-10~4 Pa, the self-ignition temperature can be reduced to 300 K even at relatively low energies of the laser radiation with λ = 0.762 μm.
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