<title>Radiation properties of water vapor in IR range for the thermodynamically inhomogeneous optical paths</title>

Determination of the hot gas concentration from the difference between contact and remote measurements of the temperature

“…Achievements of modern spectroscopy allow the researchers to construct accurate dependences of the emissivity of hot gases on their concentrations for the most investigated gaseous combustion products, including water vapor and nitrogen and carbon oxides [3][4][5]. This became possible owing to the development of theoretical methods of computing the parameters of spectral lines formed by highly excited rotational-vibrational transitions that allow the ideology of line-by-line calculations of the spectral absorption and emission characteristics of inhomogeneous gases on high-performance computers to be used [6][7][8][9][10][11].…”