Mathematical modelling of glass melting fumace design with regard to ΝΟₓ formation

Abstract

A three-dimensional mathematical model for turbulent flow and combustion on the basis of turbulence/chemistry interactions and radiative heat transfer taking into account spectral effects of surrounding walls and combustion gases is described. For this the transport equation for radiative intensity was split into different wavelength ranges. A block-structured finite volume grid with local refmements was used to solve the governing equations. The calculation domain is subdivided into a number of subdomains which are linked within the solver based on the Message Passing Interface library Computed distributions of velocity, temperature, and heat fluxes are given. Results of a parametric study in a producing horseshoe furnace by increasing the height of the furnace with regard to ΝΟₓ concentration distributions are presented.