预览加载中，请您耐心等待几秒...

湍流射流扩散火焰驻定的实验研究.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

湍流射流扩散火焰驻定的实验研究 Title:ExperimentalStudyontheSteadyStateofTurbulentJetDiffusionFlame Abstract: Turbulentjetdiffusionflamesarecommonlyencounteredinnumerousindustrialapplications,suchascombustionoffuelsinpowerplants,furnaces,andgasturbines.Understandingthesteadystatebehaviorofsuchflamesisessentialforoptimizingcombustionefficiencyandminimizingpollutantemissions.Thispaperpresentsanexperimentalstudyfocusedoninvestigatingthecharacteristicsandbehaviorsofaturbulentjetdiffusionflameinaconfinedenvironment.Theexperimentaimstoestablishafundamentalunderstandingoftheflame'ssteadystatebehaviorbyanalyzingtheinfluenceofkeyfactorssuchasfuel-airratio,confinementgeometry,andthermaleffects. 1.Introduction: Turbulentjetdiffusionflamesrefertothecombustionoffuelinthepresenceofaturbulentflowofoxidizer.Thecomplexityoftheflowfieldandchemicalreactionsinvolvedmakestheirstudychallengingbutimportantforenhancingcombustionperformance.Thispaperaimstothoroughlyinvestigatethesteadystatebehaviorofaturbulentjetdiffusionflameandgaininsightsintoinfluencingfactors. 2.ExperimentalSetup: Theexperimentwasconductedinacontrolledlaboratorysetupconsistingofafuelsource,oxidizersource,andaconfinedcombustionchamber.Thefuelusedwaspropane,andtheoxidizercomprisedamixtureofairandpureoxygen.Theconfinementgeometryvariedintermsofthenozzleshape,chamberdimensions,andburnerconfiguration.Non-intrusivemeasurementtechniques,suchaslaser-inducedfluorescence(LIF),particleimagevelocimetry(PIV),andgasanalyzers,wereemployedtocapturetheflamecharacteristicseffectively. 3.ResultsandDiscussion: Thesteady-statebehavioroftheturbulentjetdiffusionflamewasanalyzedwithrespecttothreesignificantfactors:fuel-airratio,confinementgeometry,andthermaleffects.Thestudyrevealedthatthefuel-airratioinfluencedtheflame'sstabilityandshape,withrichmixturesresultinginashorterandbroaderflamestructure.Ontheotherhand,leanmixturesgeneratedalongerandnarrowerflame.Confinementgeometry,includingthenozzleshapeandchamberdimensions,significantlyinfluencedflamelengthandshap