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Investigation of mechanisms in plasma-assisted ignition of dispersed coal particle streams

Investigation of mechanisms in plasma-assisted ignition of dispersed coal particle streams
Zhao FX, Li SQ, Ren YH, Yao Q, Yuan Y.

The plasma-assisted ignition enhancement of pulverized lignite particles is intensively studied in a laminar, upward Hencken flat-flame burner. Under the conditions of different oxygen mole fractions, the discharge mechanisms and the reductions of ignition delay time are examined to distinguish the chemical and thermal effect...

Low-frequency AC electric field induced thermoacoustic oscillation of a premixed stagnation flame

Low-frequency AC electric field induced thermoacoustic oscillation of a premixed stagnation flame
Ren YH, Li SQ*, Cui W, Zhang YY, Ma L

We present a novel phenomenon of low-frequency AC electric field induced thermoacoustic oscillations by employing a wall-jet premixed stagnation flame configuration. A high speed camera and a microphone are used to record the instantaneous flame topographies and the acoustic oscillations, respectively. We find that, under man...

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