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Ozone generation by negative direct current corona discharges in dry air fed coaxial wire-cylinder reactors
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10.1063/1.4804065
/content/aip/journal/jap/113/18/10.1063/1.4804065
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4804065

Figures

Image of FIG. 1.
FIG. 1.

Representation of the negative dc corona discharge in a coaxial wire-cylinder reactor.

Image of FIG. 2.
FIG. 2.

Schematic diagram of the experimental setup.

Image of FIG. 3.
FIG. 3.

Experimental (the different symbols) and theoretical (the solid curves) current-voltage characteristics of the negative dc coronas formed inside the reactor for different radii of the discharge wire , with the slow air flow rate of = 8.33 × 10 m/s.

Image of FIG. 4.
FIG. 4.

Radius of the ionization region of the negative dc coronas formed inside the reactor as a function of radius of the discharge wire for different values of the corona current .

Image of FIG. 5.
FIG. 5.

Volume of the negative dc corona plasma formed inside the reactor as a function of radius of the discharge wire for different values of the corona current

Image of FIG. 6.
FIG. 6.

Experimental (the different symbols) and calculated (the solid curves) results of the ozone concentration [O] as a function of the negative dc corona current for a discharge wire of radius = 2.5 × 10 m with different air flow rates through the reactor, .

Image of FIG. 7.
FIG. 7.

Experimental (the different symbols) and calculated (the solid curves) results of the ozone concentration [O] as a function of the negative dc corona current for a discharge wire of radius  = 5 × 10 m with different air flow rates through the reactor, .

Image of FIG. 8.
FIG. 8.

Experimental (the different symbols) and calculated (the solid curves) results of the ozone concentration [O] as a function of the negative dc corona current for a discharge wire of radius = 1 × 10 m with different air flow rates through the reactor, .

Image of FIG. 9.
FIG. 9.

Experimental (the different symbols) and calculated (the solid curves) results of the ozone concentration [O] as a function of the negative dc corona current for a discharge wire of radius = 2 × 10 m with different air flow rates through the reactor, .

Image of FIG. 10.
FIG. 10.

The ozone generation rate [O] inside the reactor as a function of the negative dc corona current in the range of ≤ 5 × 10 A for different radii of the discharge wire .

Image of FIG. 11.
FIG. 11.

The slope of the linear [O] relationships in Figure 10 as a function of the discharge wire .

Tables

Generic image for table
Table I.

Calculated and experimental results for the corona onset field at the wire surface and the corona onset voltage inside the reactor for different radii of the discharge wire .

Generic image for table
Table II.

The residence time of the flowing air molecules inside the reactor has been calculated by using Eq. (34) , for the different values of .

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/content/aip/journal/jap/113/18/10.1063/1.4804065
2013-05-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ozone generation by negative direct current corona discharges in dry air fed coaxial wire-cylinder reactors
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4804065
10.1063/1.4804065
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