Diesel Engine Performance Combustion and Emissions_CIMAC英文文献资料

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1、CONSEILINTERNATIONALINTERNATIONALCOUNCILDESMACHINESACOMBUSTIONONCOMBUSTIONENGINESPAPERNO.:330InfluenceofEGRRateonD30ImpureDME/DieselEnginePerformanceCombustionandEmissionsTieWang,TaiyuanUniversityofTechnology,CHINADingdingWang,TaiyuanUniversityofTechnology,CHINAFengshouGu,TaiyuanUniversi

2、tyofTechnology,CHINAWenrongliao,TaiyuanUniversityofTechnology,CHINAYonghuiDeng,TaiyuanUniversityofTechnology,CHINAWeiqiShi,TaiyuanUniversityofTechnology,CHINAHengWang,TaiyuanUniversityofTechnology,CHINAAbstract:Thispapercarriedonthestudyofthein-ofcombustionpressureandtemperaturewerede-fl

3、uenceofdifferentEGRrateoncombustionandemis-creased,thecrankangleofthepeakdelayed,ignitionsionperformancewhenapplyingD30impureDME-delayandcombustiondurationextended.NOxemis-Dieselmixedfuelon4100QBZLturboengine.There-sionsdecreasedsignificantly,whentheEGRrateex-sultsshowthat:AstheEGRratein

4、creased,thecylin-ceedsacertainvalue,COandHCemissionswillin-derpressureofpremixedcombustion,themaximumcreaserapidly.©CIMACCongress2013,ShanghaiTable1ThemaintechnicalparametersofthedieselengineINTRODUCTIONperformanceparameterindexDimethylether(DME)canbeappliedinBore×Stroke（mm×mm）100×105co

5、mpressionignitionenginewithhighcetane,Combustion-chambertypeDirectinjectionwhichisagoodsolutiontotheproblemofsootDisplacedvolume（L）3.298ωtypeparticlesandNOXemissionsandimprovesCompressionratio17.5economyandpower[1].DuetoitslowviscosityliquidRatedpower/speed（kW/r/min）70/3200characteristi

6、cs,precisioncouplingofdieselengineMaximumtorque/speed245/2000-2200directlyfueledwithDMEwillwearandleak.Diesel（N.m/r/min）andcrudedimethyletherisstoredinpressureMinimumoilconsumptionrate≤217（g/(kW·h)）vesselbymixingandthepressureofthepressureTypeofinjectionsystemPvesselmaintainsmorethan0.5

7、MPatopreventFuelinjectionpressure(MPa)24.5±0.49pipelinefromproducingvaporlock.ThispaperInjectionadvanceangle(°CA14±2selectsD30mixedfuel(massfraction:70%ofdiesel,BTDC)30%ofdimethyletherandmethanolwhichinclude1/3methanol),whichcanreachthelowerlimitofTable2TestInstruments[2]thefue