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Computation Fluid Dynamics of Aerodynamics Swirl Low NOx Burner in Furnace

Journal: International Journal of Advanced engineering, Management and Science (Vol.11, No. 4)

Publication Date:

Authors : ;

Page : 240-248

Keywords : computation fluid dynamics; low NOx burner; flame stability; internal recirculation zones; Swirl burn;

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Abstract

By using a prototype multi –annular swirl burner, the important aerodynamics features of a typical low Nitrogen Oxides NOx of internal staging schematic was studied. So by using swirl means the structure of flame is separated to locally fuel-rich environment prior to burn out. Selecting of the optimal swirl burner design is depending on swirl economy and can estimated using hydraulic resistance parameter. Swirl stabilized flames are lifted a few millimeters above the fuel injector and this liftoff allows air to mix with fuel upstream of the flame base , the positions of the primary and secondary air as well as fuel tube were adjusted to produce a particular flow field which Its name Radially Stratified Flame Core Burner. In result NOx emissions are not more than 120ppmv at 15% excess air and the implement internal staging schematic is effective and promise way to have high furnace efficiency at low NOx emissions.

Last modified: 2025-08-01 12:43:57