Nonthermal plasma applications to the environment: gaseous electronics and power conditioning

Rosocha, Louis A.

doi:10.1109/tps.2004.841800

Cited by 54 publications

(27 citation statements)

References 20 publications

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“…The electrical power (input power) was measured by a digital power meter (Model WT200, Yokogawa, Japan) and the voltage was monitored using a digital oscilloscope (TDS 3032, Tektronix, USA) equipped with a 1000 : 1 high voltage probe (P6015, Tektronix, USA). Discharge power that is actually consumed in the plasma reactor was determined by using the so-called Lissajous charge-voltage curve (Rosocha, 2005). The Lissajous curve was obtained by measuring the voltages across the electrodes of the plasma reactor and across the capacitor (0.43 F) connected to the plasma reactor in series.…”

Section: Methodsmentioning

confidence: 99%

“…Fig. 6 shows the dependence of the discharge power on the reactor temperature and the type of packing materials (alumina, zirconia and glass beads), when the input power was 60~100 W. The plasma reactor can electrically be treated as a capacitor, and the discharge power was measured by using the Lissajous curve (Rosocha, 2005). As presented in Fig.…”

Section: Discharge Powermentioning

confidence: 99%

See 1 more Smart Citation

Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

Mok¹

2011

Planet Earth 2011 - Global Warming Challenges and Opportunities for Policy and Practice

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Section: Methodsmentioning

confidence: 99%

Section: Discharge Powermentioning

confidence: 99%

Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

Mok¹

2011

Planet Earth 2011 - Global Warming Challenges and Opportunities for Policy and Practice

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“…For the measurement of the voltage applied to the DBD reactor, a 1000:1 high voltage probe (PVM-4, North Star Research, Corp., USA) and a digital oscilloscope (TDS 3032, Tektronix) were used. The power dissipated in the DBD reactor (discharge power) was estimated by the so-called Lissajous figure (charge-voltage plot), which is described in detail in the literature [19,21]. The ultraviolet radiation intensity was measured with a radiometer (VLX-365, Vilber Lourmat, France), which covers the ultraviolet intensity in the UVA band.…”

Section: Experimental Methodsmentioning

confidence: 99%

Application of Dielectric Barrier Discharge Reactor Immersed in Wastewater to the Oxidative Degradation of Organic Contaminant

Mok

Lee

et al. 2007

Plasma Chem Plasma Process

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Dielectric barrier discharge (DBD) is an effective method available for the production of ozone and ultraviolet light. The wastewater treatment system of this study was designed to utilize both ozone and ultraviolet light produced in the DBD reactor for the degradation of organic contaminant. The DBD reactor consisted of a quartz cylinder and a coaxial ceramic tube inside of which a steel rod was placed. The DBD reactor was immersed in the wastewater that was grounded. In this case, the wastewater acted not only as an electrode but also as the cooling medium for the DBD reactor. An azo dye, Acid Red 27, was used as the organic contaminant. In this system, the organic contaminant was degraded by two oxidation pathways induced by ozone and ultraviolet light. The concentration of ozone, the ultraviolet radiation intensity and the degradation efficiency of the organic contaminant were measured by varying the discharge. The results showed that the present system was very effective for the degradation of the organic contaminant. The energy requirement for the degradation was found to be 0.654 kJ/mg, which is much smaller value than those obtained with an ultraviolet/photocatalytic process.

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“…The voltage applied to the ozone generator and the plasma reactor was measured with a 1,000 : 1 high voltage probe (P6015, Tektronix) and a digital oscilloscope (TDS 3032, Tektronix). The discharge power in the plasma reactor and the ozone generator was estimated by Lissajous charge-voltage figure [16,17]. The power consumed by the nickel-chrome wire electrode was negligible, compared to that for electrical discharge, because the current level was very low.…”

Section: November 2009mentioning

confidence: 99%

Gaseous ozone decomposition using a nonthermal plasma reactor with adsorbent and dielectric pellets

Mok

Koh

Shin

et al. 2009

Korean J. Chem. Eng.

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For the treatment of gaseous ozone emission, this study investigated the adsorption and enrichment of ozone and the destruction of the adsorbed ozone by nonthermal plasma. A nonthermal plasma reactor with adsorbent pellets in it was operated in two sequential modes, adsorption and decomposition of ozone. First, the ozone-containing gas was flowed through the reactor for a given period, in which the ozone was adsorbed and concentrated. In the next step, the gas was switched to argon or nitrogen, bypassing the ozone-containing gas, and AC high voltage was applied to the reactor to produce nonthermal plasma for the decomposition of the adsorbed ozone. By this method, the gaseous ozone was effectively treated with reasonable electrical energy consumption. The adsorbed ozone was converted into molecular oxygen when argon was used as the ozone decomposition gas, whereas a small amount of nitrogen oxides was formed with nitrogen. The energy consumed to decompose the adsorbed ozone was found to be 540 and 795 kJ/ g-O 3 decomposed with argon and nitrogen, respectively.

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Nonthermal plasma applications to the environment: gaseous electronics and power conditioning

Cited by 54 publications

References 20 publications

Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

Destruction of Fluorinated Greenhouse Gases by Using Nonthermal Plasma Process

Application of Dielectric Barrier Discharge Reactor Immersed in Wastewater to the Oxidative Degradation of Organic Contaminant

Gaseous ozone decomposition using a nonthermal plasma reactor with adsorbent and dielectric pellets

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