预览加载中，请您耐心等待几秒...
1/10
2/10
3/10
4/10
5/10
6/10
7/10
8/10
9/10
10/10
在线预览结束，喜欢就下载吧，查找使用更方便
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
[键入文字][键入文字]英语科技论文实用写作方法作业[键入文字][键入文字]英语科技论文实用写作方法作业课程班级号：2学院：能动学院系别：班级：()Mail：@stu.xjtu.edu.cnAnExperimentalstudyonEvaporation/BoilingHeatTransferinSinteredPorousWickSUNZhenHONGFang-JunZHENGPing(SchoolofMechanicalEngineering,ShanghaiJiaoTongUniversity,Shanghai200240,China)AbstractWehasdesignedandestablishedanexperimentalapparatustostudytheevaporation/boilingheattransferinparticlesinteredporouswickundertheworkingconditionofheatpipe.Theeffectsofparticlesizeaswellasthethicknessandvolumetricporosityofporouswickonevaporation/boilingheattransferwereinvestigatedbyusingdistilledwaterasworkingfluid.Itwasfoundthatforthefixedparticlesizeandporosity,thereexistsanoptimalwickthicknesscorrespondingtothemaximumheattransfercoefficient.Forthefixedthicknessofporouswick,thereisanoptimalporositywhentheheatfluxisrelativelylow,however,thesmallertheporosityis,andthehighertheheattransfercoefficientiswhenheatfluxisrelativelyhigh.Anevaporation/boilingheattransfermodelwasalsosummarizedtogiveplausibleexplanationsofexperimentalresults.Keywordsparticlesintered;porouswick;evaporation/boiling;heatpipe0IntroductionTheflatheatpipeisahigh-performancethermaldiffusiontechnologywhichconnectstheelectronicchip(heatsauce)andtheheatsink.Itcanbeconsideredasatwo–dimensionheatpipefromthedirectionofsteamflow.Theparticlesinteredporouswickisanimportantinternalstructureoftheflatheatpipe.Whentheflatheatpipeisonthestablerunningperiodandtheliquidlevelislowerthantheuppersurfaceoftheporouswick,thephasetransitionoccurs.Todistinguishitfromthepoolboiling,thisphasetransitioniscalledevaporation/boilingheattransfer.Theevaporationandboilingheattransferofrefrigerantinandatthesurfaceofporouswickisoneoftheimportantfactorsinfluencingheatpipe’sproperty.Althoughmuchliteratureaboutporouswickboilingheattransferhasbeenpublished(seepaper[1],[2]andtheirreferences),muchoftheresearchwasaboutpoolboilingorone-dimensionheatpipe,andlittleresearchwasaimedatevaporation/boilingheattransferinsintered[3-5]porou
