Accession Number : AD0006675


Title :   APPROXIMATE EMISSIVITY CALCULATIONS FOR POLYATOMIC MOLECULES. 1. CO2 - AND APPENDIX


Corporate Author : CALIFORNIA INST OF TECH PASADENA GUGGENHEIM JET PROPULSION CENTER


Personal Author(s) : Penner, S S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/006675.pdf


Report Date : Mar 1953


Pagination or Media Count : 40


Abstract : Approximate emissivities were calculated at a function of optic al density for CO sub2 at 300 deg. and 600 deg. K under the assumption that the rotational lines overlapped extensively. The condition appeared to be satisfied at total pressures above 1 atm. The calculated values agreed with those of Hottel (Heat Transmission, chap. 3, McGraw-Hill, N.Y., 1942). The results showed that reasonable estimates of the engineering emissivity were obtainable without extensive analysis by adding the partial emissivities from selected spectral regions.


Descriptors :   *EMISSION SPECTRA , *CARBON DIOXIDE , EMISSIVITY , HEAT TRANSMISSION


Subject Categories : Atomic and Molecular Physics and Spectroscopy


Distribution Statement : APPROVED FOR PUBLIC RELEASE