Emissivity of Hydrogen Atoms at High Temperatures
作者:
Henry Aroeste,
William C. Benton,
期刊:
Journal of Applied Physics
(AIP Available online 1956)
卷期:
Volume 27,
issue 2
页码: 117-121
ISSN:0021-8979
年代: 1956
DOI:10.1063/1.1722319
出版商: AIP
数据来源: AIP
摘要:
A method is described for making estimates of the total emissivity of hydrogen in the temperature and pressure ranges where hydrogen atoms predominate under equilibrium conditions. For a typical geometrical depth of 50 cm, and temperatures of the order of 12 500°K and higher, with pressures of the order of 100 atmos and higher, the emissivity approaches unity(&egr;[similar or greater-than]0.95), while for temperatures of the order of 9500°K and lower, with pressures of the order of 10 atmos and lower, the emissivity approaches zero(&egr;[similar or less-than]0.05). The variations of the emissivity between these approximate limits are shown graphically as functions of temperature and pressure with the geometrical depth set at 50 cm. The variation of the emissivity with geometrical depth is also shown graphically at 12 600°K and 20 atmos.
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