Numerical Simulations of Combustion Characteristics and NO _x Emissions for Two Configurations of Swirl Coal Burners in a 300 MWe Wall-Fired Boiler

摘要

We studied both experimentally and numerically the pulverized-coal combustion process and NO _x emissions in a 300 MW_e wall-fired boiler burning bituminous coal. In simulations of an enhanced ignition-dual register (EI-DR) burner arrangement, results gave values of 6.39% and 861.43Â mg/m3 at 6% O₂ for combustible material content in the fly ash and NO _x concentration at the furnace outlet, respectively. Meanwhile, simulations with a centrally fuel rich (CFR) swirl burner arrangement gave similar results of 3.63% and 695.36Â mg/m3 at 6% O₂. Comparing the two, the NO _x concentration of the latter had decreased by 19.28%.View full textDownload full textRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/10407782.2011.600618