Performance Enhanced In Reduction Of Nox Emissions Using Swirl In A Combustion Procedure

Abstract

A numerical investigation of NO_x formation in natural gas-fired furnace is presented. In order to reduce NO_x emissions, a combustion modification technique is applied using the advantage of swirl in a non-premixed combustion process. As NOx is produced at high temperatures, radiation needs to be included in this inquiry. The models of this study are selected of such kind there will be accurate computational results. The finite volume technique (FVM), paired with an extended eddy break-up model and the standard k-ε model, is developed to solve the radiative transfer equation (RTE). The thermal NO mechanism is used to predict the NO_x formation. It is clearly shown that swirl can reduce considerably the NO_x emission.