Experimental verification of theoretical relations between total gas absorptivities and total gas emissivities for CO
- Creators
- Oppenheim, U. P.
Abstract
An experimental study has been carried out for the purpose of verifying theoretical predictions concerning the relations between total absorptivities and total emissivities for transparent gases. The experimental conditions have been designed in such a way as to permit a direct check of theoretical relations derived for (a) nonoverlapping dispersion lines and (b) spectral lines with sufficient pressure broadening to permit neglect of the rotational fine structure. A comparison between the emissivities derived from absorptivity measurements and emissivities calculated from the spectroscopic constants of CO shows a good agreement (within 20% for most of the temperature range). The apparatus for the measurement of total gas absorptivities is described. Results for total absorptivities of carbon monoxide measured at temperatures between 300 and 500°K are given and total emissivities have been calculated in the temperature range of 300 to 1600°K. The range of total gas pressure is 0 to 515 psia.
Additional Information
© 1959 American Institute of Physics. Received October 20, 1958. Online Publication Date: 16 June 2004. This work was supported by the United States Office of Naval Research under Contract No. Nonr-220(03), NR 015 401. The present study was suggested by Professor S. S. Penner, to whom I am indebted for many valuable discussions. The apparatus described in this report evolved from an earlier version constructed by Mr. D. Weber at the Jet Propulsion Laboratory in 1954.Attached Files
Published - JApplPhys_30_803_1_.pdf
Reprint - 103_Oppenheim_UP_1959.pdf
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Additional details
- Eprint ID
- 21746
- Resolver ID
- CaltechAUTHORS:20110113-104239681
- Office of Naval Research (ONR)
- Nonr-220 (03), NR 015 401
- Created
-
2011-01-14Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Guggenheim Jet Propulsion Center
- Other Numbering System Name
- Guggenheim Jet Propulsion Center