Experimental Determination of the Thermal Conductivity of Atmospheric Argon Plasma
Experimental Determination of the Thermal Conductivity of Atmospheric Argon Plasma
复制标题
DOI：
10.1063/1.1761800
复制
发表时间：
1966-05
影响因子：
4.6
通讯作者：
C. Knopp;A. B. Cambél
中科院分区：
文献类型：
--
作者：
C. Knopp;A. B. Cambél
在30 ~ 60 A的电弧电流下，用光谱分析法测定了圆柱对称氩等离子体柱内的径向温度分布。从绝对线和绝对连续辐射得到的温度被发现是非常一致的。基于Kramers-Unsold理论模型，获得了辐射功率随温度变化的经验表达式。利用测量的温度曲线、计算的辐射功率和电导率的解析表达式，确定了8500至12000 °K温度范围内氩气的热导率。数据与理论预测结果吻合较好。
The radial temperature distribution within a cylindrically symmetric argon plasma column was determined by spectroscopic analysis for arc currents of 30 to 60 A. Temperatures obtained from absolute line and absolute continuum radiation were found to be in excellent agreement. An empirical expression, based on the Kramers‐Unsold theoretical model, was obtained for the radiated power, as a function of temperature. Using the measured temperature profiles, the calculated radiated power, and an analytical expression for the electrical conductivity, the thermal conductivity of argon was determined for the temperature range of 8500 to 12 000°K. The data were in good agreement with theoretically predicted results.