Examinations based on an Absorption Line Database about the Influence of Turbulent Fluctuation on Radiative Heat Transfer in the Large-scale Industrial Furnace Enveloping a Sooted Hydrocarbon Flame

Abstract

Influence of turbulence fluctuation of temperature and gas composition was examined based on absorption line database, in relation to the radiative heat transfer toward the wall of large-scale industrial furnaces enveloping a soot hydrocarbon flame. Adding the method to obtain the emissive power by soot to our calculation method, we can evaluate the radiative heat transfer from both of gas and soot in the turbulent luminous flame. As results, though soot radiation leads to obvious changes both in the distribution of radiative heat flux and in the spatial distribution of time-averaged temperature, influence on the total of wall heat flux is not so remarkable. But, the difference appears in the total of wall radiative heat flux estimated according to the band by the difference in the emission spectrum of gas and soot. And, also it was found that influence the turbulent fluctuation of soot on the total of wall heat flux is small relatively.