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Spatiotemporal study of the local thermodynamic equilibrium deviations in high-intensity discharge lamps
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10.1063/1.4799818
/content/aip/journal/pop/20/4/10.1063/1.4799818
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/4/10.1063/1.4799818

Figures

Image of FIG. 1.
FIG. 1.

Electrical supply circuit of the lamp.

Image of FIG. 2.
FIG. 2.

Lamp geometry (a) and finite element grid used (b) near the electrode region.

Image of FIG. 3.
FIG. 3.

Radial profile of the electron temperature in the middle of the discharge ( )

Image of FIG. 4.
FIG. 4.

Radial profile of the electron temperature in the middle of the discharge ( )

Image of FIG. 5.
FIG. 5.

Variation of the electric potential as a function of z.

Image of FIG. 6.
FIG. 6.

The calculated and measured profiles of the electrons' temperature, for D1 discharge, for the steady regime.

Image of FIG. 7.
FIG. 7.

The calculated and measured profiles of the electrons' number density at 5 ms for the D2 discharge.

Image of FIG. 8.
FIG. 8.

Calculated and measured profiles of the current, for the D3 discharge.

Image of FIG. 9.
FIG. 9.

The first grid size.

Image of FIG. 10.
FIG. 10.

The second grid size.

Image of FIG. 11.
FIG. 11.

Distribution of the relative difference of temperature in the calculation domain at three instants of the half-cycle, at (a) , (b) , and (c) .

Image of FIG. 12.
FIG. 12.

Variations of the relative temperature's difference radial profile during the ac cycle, for (a) and (b) .

Image of FIG. 13.
FIG. 13.

Variations over time in the arc core of (a) the main energy transfer terms, (b) both electrons and heavy particles' temperatures, and (c) relative temperatures' difference, electrons' number density, and axial electrical field.

Image of FIG. 14.
FIG. 14.

Relative temperature's difference between the electrons and heavy particles from the model calculation and that is given by Eq. (19) in the middle of the axis tube.

Image of FIG. 15.
FIG. 15.

Relative temperature's difference from the model calculation and that is given by Eq. (19) in the middle of the tube for (a): and (b): .

Image of FIG. 16.
FIG. 16.

Separate effect terms on the relative temperature's difference in the middle of the axis tube.

Tables

Generic image for table
Table I.

Boundary conditions (N.D.: Not defined).

Generic image for table
Table II.

Discharges characteristics.

Generic image for table
Table III.

Discharge characteristics.

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/content/aip/journal/pop/20/4/10.1063/1.4799818
2013-04-03
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spatiotemporal study of the local thermodynamic equilibrium deviations in high-intensity discharge lamps
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/4/10.1063/1.4799818
10.1063/1.4799818
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