Measurements and correlations of infrared radiation of carbon monoxide at elevated temperatures

A study of infrared radiation of vibrationally excited CO in the 4.7 μm band and CO2 in the 4.3 μm and 2.7 μm bands

“…The calculational accuracy for the spectral emissivity in the present work is illustrated in figure 1. This figure compares systematically the spectral emissivity in the thermodynamically equilibrated conditions ~ 03B503C9 ~ as calculated by the present authors for the 4.3 gm band with the experimental data reported elsewhere [28,29,[48][49][50][51].…”

“…-Spectral radiation intensity I03C9 ~ of the CO and C02 bands under study as the vibrational temperatures of the active modes, T(3)vib and T(5)vib, increase from 600 to 2 200 K, T(1,2)vib = 500 K, T = 300 K, P = 5 x 10-2 atm., X = 10-2 atm.cm. Curves 1 correspond to 3) , T(5)vib = 600 K, 2 -1 000 K, 3 -1 400 K, 4 -1 800 K, 5 -2 200 K. moderate values range T(3)vib and T(5)vib 1 500 K. As T(3)vib and T(5) increase from 600 to 1 400 K, the intensity of all the bands under study increases by a factor of over 50. At the same time, the spectral radiation range will expand towards the long wavelength region, which corresponds to a noticeable population of the excited vibrational levels.…”

Propagation of Visible and Infrared Waves in the Atmosphere (Rasprostranenie Vidimykh i Infrakrasnykh Voln v Atmosfere)

“…The total absorption of the fundamental band (the interval 1900 -2450 cm-) was measured in [313] at the temperatures 300, 600, 900, 1200 and 1500 0 K when the pressure varied from 0.25 to 3 atm for a path length in the gas vessel of 1, 5, 10 and 20 cm. The total absorption of the fundamental band and its first overtone were also calculated in [313] (the 4050 -4450 cm-1 region) for various temperatures and pressures.…”