预览加载中，请您耐心等待几秒...

柴油机TR燃烧系统模拟与试验研究(英文).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

柴油机TR燃烧系统模拟与试验研究(英文) DieselEngineTRCombustionSystemSimulationandExperimentalResearch Abstract: ThedieselengineTRcombustionsystemisanimportantparameterintheperformanceofadieselengine.ThisresearchaimstosimulateandexperimentallyinvestigatetheTRcombustionsystemtoimproveengineperformance.Thesimulationwasperformedusingcomputationalfluiddynamics(CFD)softwareandvalidatedexperimentsonadieselenginetestbench.TheresultsshowedthattheTRcombustionsystemcouldsignificantlyimproveengineperformanceandreduceemissions,providingabasisforfurtherresearch. Introduction: Dieselenginesarewidelyusedintransportation,powergeneration,andindustrialequipmentbecauseoftheirhighfuelefficiencyandreliability.Thetraditionaldieselenginecombustionsystemisthedirectinjectionsystem(DIS),whichhassomedisadvantages,suchashighNOxemissions,lowthermalefficiency,andharshcombustionnoise.Therefore,manyresearchershaveproposedalternativecombustionsystems,suchaspremixedchargecompressionignition(PCCI),homogeneouschargecompressionignition(HCCI),andtheTRcombustionsystem.TheTRcombustionsystemisanewcombustionmodethatcombinestheadvantagesofDISandPCCI,whichcanimprovefueleconomy,reduceemissions,andprovideasmoothcombustionprocess. Methodology: Inthisstudy,adieselengineTRcombustionsystemwasdesignedandsimulatedusingCFDsoftware.Thesimulationmodelwasestablishedbasedontheenginestructureandthecombustionprocess.Thefuelspraymodel,turbulencemodel,andcombustionmodelwereselectedaccordingtotheengineoperatingconditionsandthecombustioncharacteristics.Thesimulationresults,includingthecombustionpressure,heatreleaserate,andtemperaturedistribution,werecomparedwiththeexperimentaldatatovalidatethesimulationaccuracy. Theexperimentalstudywasconductedonadieselenginetestbenchequippedwithacommonrailinjectionsystemandapiezoelectricpressuresensor.Theenginespecificationswereselectedtomatchthesimulationconditions.Aseriesofexperimentaltestswerecarriedout,includingthecombustionpressuremeasurement,fuelconsumptionmeasurement,andexhaustgasanalysis.Theexperimentsw