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1、b南京工业大学《化学工程与工艺》专业本科毕业论文(设计)外文资料翻译原文名称Effectsoftemporallyvaryingliquid-phasemassdiffusivityinmulticomponentdropletgasification原文作者HuiqiangZhang,ChungK.Law原文出版CombustionanFlame翻译内容页码全文中文名称在多元液体气化中改变液相大规模扩散的暂时性影响学生姓名唐柯楠专业化学工程与工艺班级学号040126指导教师（签字）对译文的评价技术学院2008年6月bbEffectsoftemporall

2、yvaryingliquid-phasemassdiffusivityinmulticomponentdropletgasificationAbstractTherelativerolesofliquid-phasediffusionalresistanceandvolatilitydifferentialinmulticomponentdropletgasificationarerevisited,recognizingthatliquid-phasemassdiffusivitiescanbesubstantiallyincreasedasthedro

3、pletisprogressivelyheateduponinitiationofgasification,leadingtoacorrespondingsubstantialweakeningofthediffusionalresistance.Calculationsperformedusingrealisticandtemperature-dependentthermalandmassdiffusivitiesindeedsubstantiatethisinfluence.Inparticular,thecalculatedresultsagreew

4、iththeliteratureexperimentaldata,indicatingthatthegasificationmechanismofmulticomponentfuelsisintermediatebetweendiffusionanddistillationlimits.Investigationwasalsoperformedongasificationatelevatedpressures,recognizingthattheliquidboilingpointandhencetheattainabledroplettemperatur

5、ewouldincreasewithincreasingpressure,causingfurtherweakeningoftheliquid-phasediffusionalresistance.Thispossibilitywasagainverifiedthroughcalculatedresults,suggestingfurtherdeparturefromdiffusionlimittowarddistillationlimitbehaviorforgasificationathighpressures.Thestudyalsofoundtha

6、tdiffusionalresistanceisstrongerforthelighter,gasoline-likefuelsascomparedtotheheavier,diesel-likefuelsbecausetheformerhaveoveralllowerboilingpoints,lowerattainabledroplettemperatures,andhencelowermassdiffusivitiesinspiteoftheirlowermolecularweights.2008TheCombustionInstitute.Publ

7、ishedbyElsevierInc.Allrightsreserved.Keywords:Multicomponentdroplet;Liquidmassdiffusivity;Distillation1.IntroductionItiswellestablishedthatthegasificationmechanismofamulticomponentdropletiscontrolledbythreecompetingfactors,namelythevolatilitydifferentials,theliquid-phasemassdiffus

8、ivity,andthedropletsurfaceregress