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On combustion enhancement mechanisms in the case of electrical-discharge-excited oxygen molecules

  • Gas Discharges, Plasma
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Abstract

Combustion intensification mechanisms in a supersonic flow of a hydrogen-oxygen mixture behind the oblique shock wave front are investigated for the case when vibrations and the a 1Δg and b 1Σ +g electron states of a O2 molecule are excited by an electrical discharge. The presence of vibrationally excited and electronically excited O2 molecules in the oxygen plasma allows intensification of the chain mechanism in the H2-O2 mixture even if the energy put into O2 molecules in the discharge is low. Excitation of O2 molecules is several tens of times more efficient for acceleration of oxygen-hydrogen mixture combustion than mere heating of the gas by an electrical discharge. In addition, low-temperature inflammation of the mixture with electrical-discharge-excited O2 molecules makes it possible to raise the efficiency of conversion of the reactant chemical energy to heat compared with the conventional way of combustion initiation by heating.

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Authors and Affiliations

  1. Baranov Central Institute of Aviation Motors, Moscow, 111116, Russia

    A. M. Starik, B. I. Lukhovitskiĭ & N. S. Titova

  2. Institute of Fundamental Problems for High Technologies, National Academy of Sciences of Ukraine, Kyiv, 03028, Ukraine

    V. V. Naumov

Authors
  1. A. M. Starik
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  2. B. I. Lukhovitskiĭ
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  3. V. V. Naumov
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  4. N. S. Titova
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Corresponding author

Correspondence to A. M. Starik.

Additional information

Original Russian Text © A.M. Starik, B.I. Lukhovitskiĭi, V.V. Naumov, N.S. Titova, 2007, published in Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 77, No. 10, pp. 34–42.

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Starik, A.M., Lukhovitskiĭ, B.I., Naumov, V.V. et al. On combustion enhancement mechanisms in the case of electrical-discharge-excited oxygen molecules. Tech. Phys. 52, 1281–1290 (2007). https://doi.org/10.1134/S1063784207100064

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  • DOI: https://doi.org/10.1134/S1063784207100064

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