Impact of Particle Size and Carrier Gas on Pulverized Bituminous Coal Emissions: Experimental and Computational Fluid Dynamics Analysis

This study explores the influence of particle size and carrier gas on clean efficient combustion pulverized 'Barapukuria' bituminous coal. Both experimental numerical analyses were conducted to examine temperature fluid flow in a 1400 mm long vertical furnace with 344 x mm² interior crosssection. High-Temperature Air Combustion (HTAC) was employed minimize NOx emissions. The research focused volatile matter reactivity during combustion, evaluating their impact NOx, CO2, CO generation. CO2 used as inject coal particles sizes ranging from 0.001 0.02 mm. Results showed flue recirculation varied devolatilization patterns different sizes. Smaller produced less compared larger particles, highlighting potential for improved reduced Computational dynamics (CFD) analysis also supported results. By optimizing parameters, this may contribute achieve environmental sustainability. Journal Engineering Science 14(1), 2023, 65-76