煤质特性对W型火焰锅炉燃烧影响的数值模拟研究-热能工程专业毕业论文

0MWW-shapedboilerofZhuzhoupowerplantastheresearchobject,bustionprocessbyFLUENTsoftware.Byanalyzingthevelocityfield,oxygenfield,temperaturefield,movementtrackofparticlesandburnoutratioofsimulationresults,researcherfoundthatthehearthfullnessandtemperaturedistributionwasthebest,bustingGuiyangcoal;bustingGuiyangcoalby50"C,andtheflamewasnotcontinuous.ChangingcoaldidmakeobviouseffectsonpulverizedCOalresidencetimeinfurnace.Theirburnoutratiowererespectively96.33%,97.06%,98.16%.TheburnoutratiowasincreasedbV1.44%whenthecoalfinenessdecreasedfrom16.9%to6.5%.Testdataandthenumericalsimulationresultsarealmostsame,urate.TheresearchresultsCanprovideⅡIvaluablereferencesforchoosingcoal,blendedcoalmixedburningandboileroperationinpowerplants.KeyWords:coalcharacteristics;numericalsimulation;W-bustionⅢ\l■伊r1,4$4