An Investigation of the High-Pressure Sodium Arc Simulation Model with an Energy Balance Equation

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  • エネルギーバランス式に基づいた高圧ナトリウムアークの特性モデルの研究
  • エネルギー バランスシキ ニ モトズイタ コウアツ ナトリウム アーク ノ ト

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An investigation of the high pressure sodium arc simulation model with an energy balance equation has been carried out. Arc temperature profiles are calculated by a relaxation method taking account of an energy balance equation for thermal conduction, radiation and input power. The method involves calculation of the radiation flux density as a function of radius for a given temperature profile using an integral solution of the radiation transport equation. The line shapes of both atomic and molecular spectra have been assumed to be optically thick. Atomic spectra are calculated for resonance broadening and Stark broadening. Mercury contributions on the red wing of Na D-lines and continuum spectra near 450 nm are also taken into account. Calculated results were compared with measured data and comparatively a good agreement has been attained over the wide lamp parameter region.

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