Modelling of nitric oxide formation during liquid fuel combustion

A liquid fuel combustion process, being a source of many environmentally hazardous pollutants (e.g. nitrogen oxides, carbon monoxide, polycyclic aromatic hydrocarbons, soot and sulphur oxides), is a subject of extensive research aimed at reduction of their emissions. A high temperature of the combustion air tends to increase the content of NOX in exhaust gases. Based on the experimental data and literature as well as using the CFD tools, a model of light fuel oil combustion has been developed with an emphasis on nitric oxide formation. The model adequately reflects the impact of geometry changes in the flow of combustion substrates on concentrations of carbon monoxide and nitrogen oxides in the chamber. The quantitative results obtained are comparable to the experimental data.