Numerical and Experimental Investigation of the Decoupling Combustion Characteristics of a Burner with Flame Stabilizer

In order to integrate renewable electricity into the power grid, it is crucial for coal-fired plant boilers operate stably across a wide load range. Achieving steady combustion with low nitrogen oxide (NOx) emissions poses significant challenge burning low-volatile coal in plants. This study focuses on developing decoupling technology operating at loads. A three-dimensional numerical simulation employed analyze and optimize geometrical parameters of burner applied real 300 MW pulverized fired boiler. Detailed analysis burner’s characteristics, including stable ability NOx reduction principles, conducted. The results indicate that this showed three stages coal/air separation, flame holder facilitates stepwise spontaneous ignition coal. By extending time between pyrolysis carbon combustion, enhances achieves emissions. Based optimization, flat partition plate without inclination demonstrates excellent performance terms velocity vector field distribution, air flow rich/lean generation. Compared initial structural design, average concentration outlet reduced by 59%.