000 01857nab a2200205 4500
005 20260520000835.0
008 260224s2009 xxu
245 0 0 _aNumerical prediction of pulverized coal flame in utility boiler furnaces
260 _a
_b
_cnov./dic. 2009
270 _a08/06/2010 ; 08/06/2010
300 _a11 p. ; 5401-5412
520 _aTranscripción del resumen del autor. In optimization of a utility boiler furnace operation, special attention is given to the flame geometry and position. As an illustration of possibilities for application of mathematical prediction and numerical experiment in efficient optimization of the flame, the paper presents selected results of simulations of processes in pulverized coal tangentially fired furnace of Kostolac-B 350 MW electric boiler unit. To analyze the furnace working under different conditions, a differential 3D mathematical model of two-phase turbulent reactive flow with heat and mass transfer and corresponding computer code have been developed. Using the model and the code, previously carefully verified and validated against field measurements, an extensive numerical study has been performed to investigate the dependence of the furnace flame characteristics on different operating conditions, including distribution of the coal, air flow rates, and particle size classes over the burner tiers, as well as the quality and grinding fineness of coal and the operation scheme of the coal mills. The numerical predictions of the flame characteristics enable a specific tool for optimization of the boiler unit with respect to efficiency and ecology.
581 _a6
773 0 _tEnergy & fuels
_g23
942 _cARTICULO
100 1 _aBelosevic, Srdjan
_942236
100 1 _aSijercic, Miroslav
_942237
100 1 _aCrnomarkovic, Nenad
_942238
999 _c170770
_d170770