The aim of this work is to study the local thermodynamic equilibrium (LTE) deviations in arc discharges plasma generated in high-intensity discharge lamps operating under an ac (50 Hz) power supply. To achieve this goal, we elaborate a two-temperature, two-dimensional, and time-depending model. We have found numerical results almost reproducing the experimental data, which allows us to validate this model. After validation, we have discussed different energy term effects on the LTE deviations.

Topics
Energy equations, Thermal conductivity, Electrostatics, Thermodynamic states and processes, Spectrometry, Numerical methods, Partial differential equations, Elastic collisions, Electric discharges, Arc plasma
© 2013 American Institute of Physics.
2013
American Institute of Physics
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