预览加载中，请您耐心等待几秒...

中心分级燃烧室雾化特性试验研究.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

中心分级燃烧室雾化特性试验研究 Title:ExperimentalStudyonAtomizationCharacteristicsinCentralGradedCombustionChamber Introduction: Centralgradedcombustionchambersareakeycomponentinmanycombustionsystems,includinggasturbines,internalcombustionengines,andindustrialburners.Effectiveatomizationoffuelinthecombustionchamberiscrucialforefficientandlow-emissioncombustion.Thisexperimentalstudyaimstoinvestigatetheatomizationcharacteristicsinacentralgradedcombustionchamber,providingvaluableinsightsintofuel-airmixingandcombustionprocesses. ExperimentalSetup: Theexperimentwasconductedusingalaboratory-scalecentralgradedcombustionchamber.Thecombustionchamberwasequippedwithafuelinjectorlocatedatitscenterandaseriesofairinletscircumferentiallydistributedaroundthecombustionchamber.Thefuelinjectorutilizedapressure-swirlatomizertoprovideafinesprayofliquidfuelintothecombustionchamber.Theairinletsweredesignedtoensureuniformairdistributionthroughoutthechamber.Theexperimentwasperformedatvariousoperatingconditions,includingdifferentfuelflowrates,injectorpressures,andcombustionchambertemperatures. MeasurementTechniques: Severalmeasurementtechniqueswereemployedtocharacterizetheatomizationprocessinthecentralgradedcombustionchamber.High-speedimagingwasusedtovisualizethefuelspraypatternsanddropletsizedistributions.LaserdiffractiontechniqueswereutilizedtodeterminetheSautermeandiameter(SMD)anddropletsizedistribution.Additionally,laser-inducedfluorescence(LIF)techniqueswereemployedtoinvestigatethefuel-airmixingprocess. ResultsandDiscussion: Theexperimentalresultsrevealedsignificantinsightsintotheatomizationcharacteristicsinthecentralgradedcombustionchamber.Thefuelspraypatternsexhibitedaradialdispersionduetothepressure-swirlatomizerandtheswirlingairflowwithinthechamber.Thedropletsizedistributionsshowedawiderangeofdropletsizes,withthemajorityofdropletsfallingwithinthesmalltomediumsizerange.TheSautermeandiameter(SMD)decreasedwithincreasingfuelflowrateandinjectorpressure,indicatingbetteratomizationathigherfuelsupplycondi