HEATING AND IONIZATION OF A GAS STREAM BY REPETIVE, SUPPRESSED-BREAKDOWN DISCHARGES.
Final technical rept.,
MICHIGAN UNIV ANN ARBOR
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When an impulse voltage having a very fast rise time is applied to corona-type electrodes, a current of several thousand amperes may flow through the gas before appreciable sparkstreamer formation takes place. If the voltage is quickly removed, several joules of energy can be delivered to an atmospheric-density gas in a single suppressed-breakdown pulse. By using pulse repetition rates of several thousand per second, many kilowatts of electrical power can be delivered to a subsonic or supersonic gas stream by a single set of electrodes. Compared to arc-heating methods, the pulsed-corona discharge is diffuse and uniform and the gas flow remains much more homogeneous. Author