Abstract
Combustion process in stoker type incinerator consists of two steps so that complete combustion is achieved. Through the combustion processes, the flue gas including environmental pollutant is exhausted, and the reduction of the emission is required to decrease environment load. In this paper, numerical computations assuming the secondary combustion in waste incinerator are made of axisymmetric laminar jet diffusion flames, which flows air from round tube nozzle into the high temperature reducing condition assumed burnt gas from primary combustion. The effects of the flow velocity and the temperature of the air, and burnt gas composition after primary combustion given to the flame structure and NO_x formation characteristics are evaluated.
