S. A. Averyanova, N. K. Kurakina, N. V. Obraztsov, E. N. Tonkonogov
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The Absorption Coefficient in Various Gases in the Range of Temperatures of 300–30 000 K and Pressures of 1–30 Atm
Numerical simulation is widely used in the study of energy exchange between the arc and the gas flow in arc-quenching devices of HV gas-blast circuit breakers. In the high-current phase, the main factor that influences energy exchange is radiation. Numerical models used to describe radiative heat transfer include an absorption coefficient, which depends on many parameters. The main parameters are the temperature and pressure of the gas and the radius of the plasma column. In this paper, the absorption coefficient for the main arc-extinguishing media was investigated: dry air (N2), SF6, CO2 in the temperature range of 300—30 000 K and pressures of 1–30 atm with plasma column radii in the range of 1–40 mm.
期刊介绍:
Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.