Abstract
Results of an experimental study of continuous spin detonation of a coal-air mixture with addition of a certain amount of hydrogen in a plane-radial vortex chamber 500 mm in diameter are presented. The tested substance is fine-grained cannel coal from Kuzbass, which has a particle size of 1–7 µm and contains 24.7% of volatiles, 14.2% of ashes, and 5.1% of moisture. Stable regimes of continuous spin detonation with transverse detonation waves having velocities of 1.86–1.1 km/s with respect to the cylindrical wall of the combustor are obtained for the first time. The mass fraction of hydrogen is 1.5–0.88% of the air flow rate and 50–3.4% of the coal consumption rate. The maximum specific coal consumption rate of 106 kg/(s · m2) is obtained.
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Original Russian Text © F.A. Bykovskii, S.A. Zhdan, E.F. Vedernikov, Yu.A. Zholobov.
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Translated from Fizika Goreniya i Vzryva, Vol. 48, No. 2, pp. 89–94, March–April, 2012.
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Bykovskii, F.A., Zhdan, S.A., Vedernikov, E.F. et al. Detonation combustion of coal. Combust Explos Shock Waves 48, 203–208 (2012). https://doi.org/10.1134/S0010508212020098
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DOI: https://doi.org/10.1134/S0010508212020098