EXPERIMENTALTo study the effect of a pulse corona discharge on detonation process, a shock tube was designed and made ( Fig. 1). The shock tube was composed of two cylindrical sections of 70 mm in inner diameter, discharge section 1 and detonation section 2 .
Air bubbles discharge from the end of a submerged tube as shown in Fig. P7.67. The bubble diameter, D, is assumed to be a function of the air flowrate, Q, the tube diameter, d, the acceleration of gravity, g, the density of the liquid, , and the surface tension of the liquid, . (a) Determine a suitable set of dimensionless variables for this problem. Discharge Ignition Behavior of the Space Station Plasma results of the ignition testing performed to date. Experiment Apparatus Hollow Cathode Assembly The HCA consisted of a hollow cathode which was a refractory metal tube with a thoriated tungsten orifice plate welded to one end. A porous tungsten insert impregnated with a Ba-Ca-AI oxide compound to lower the work function was placed inside the
Effect of Surface Charge on Ignition of RF Impulse Discharge Used for Surface MgO Coating in A Small-Diameter Glass Tube Takumasa Muraoka and Satoru Iizuka PDepartment of Electrical Engineering, Tohoku University 980-8579 Sendai, Japan A method for performing inner wall surface processing has been investigated by generating micro- Ignition properties of helium discharges in dielectric effect of tube size on the discharge's ignition voltage and propagatingmorphology. In 2011, Jánský et al. studiedan The ignition voltage for the discharge in tubes with radius R
tube by the diameter of the electrodes, but it should be kept in mind that the diameter of the discharge region is greater by 0.7 mm. The background pressure of the vacuum system was 106 mbar and the measurements were carried out in standing gas. The purity of the lling gas and the discharge tube was checked spectroscopically during the Reducing Electrostatic Discharge In Semiconductor and possible ignition of the surrounding, potentially flammable, solvent-rich environment. An example of an ESD-created leak path through PFA tubing is shown in Figure 1.. Tube OD Fluid leak path Tube ID Tube wall Figure 1. Example of electrical discharge through the PFA tubing wall (0.062" diameter
Mar 01, 2008 · It was observed (see Fig. 6) that the frequency of self-ignition of jet-flows increased with increasing length of the discharge tube. Furthermore, the pressure at which these ignitions occurred appears to be decreasing with increasing length (with a 5 mm extension tube, doubling the length decreased this pressure from 15 to 6 MPa; similarly, a doubling of the length of the extension The effect of electrode diameter on the ignition of the dc This report studied the effect of electrode diameter (55 mm, 25 mm, 12 mm, 5 mm, 2.4 mm and 0.8mm) on the ignition of the discharge in nitrogen and its modes of burning. The decrease in the electrode diameter was found at large gas pressure values to discharge ignition at lesser voltage values than for large size electrodes and at low gas pressure values to the shift of breakdown curves to
the best conditions for discharge ignition are observed when the anode overlaps the total cross section of the discharge tube (the curve for the anode diameter of 55 mm). The minimum of this breakdown curve is located at nitrogen pressure of 0.25 Torr and voltage of 286 V. On decreasing the anode diameter the breakdown