Abstract
Recent research on the ignition of dust behind a shock wave, initiation
of detonation combustion by shock waves, and the detonation of dust-gas
mixtures is reviewed, with emphasis on organic dust. It is shown
that organic dusts are easily ignited and can detonate in mixtures
with air. Readily inflammable dusts detonate even inside small-diameter
pipes. The length of the reaction zone in the detonation wave is
greater than in the case of gas mixtures, and the combustion time
at the detonation front is less than 1 ms. It is estimated that wall
losses in the case of detonation in thin pipes are approximately
5 percent of the total heat of combustion.
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