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StudyonChemicalKineticofWaterEmulsionDieselCombustionUsingNheptaneDetailedModel

ZOUShunqian1,2,SHENYinggang2,WENGJiaqing2,ZHANGWei2,3   

  1. 1.FacultyofLogistics,KunmingMetallurgyCollege,Kunming650033,China;
    2.FacultyofTransportationEngineering,KunmingUniversityofScienceandTechnology,Kunming650500,China;3.StateKeyLaboratoryofEngines,TianjinUniversity,Tianjin300072,China
  • Online:2013-03-30 Published:2013-03-30

Abstract: Taking4100QBZL2DIdieselengineasobject,chemicalkineticsof10%,20% and30%
wateremulsiondieselisimitatedusingchemicalkineticscalculationsoftwareChemkinandLLNL'sNheptaneoxidationdetailmodel.Numericalsimulation.Theresultshowsthatthephysicalphenomenonofthe moistureofemulsionfuelincylindercouldmakeignitiondelaylongerandfirelagsofwateremulsified dieseloil.MixingcertainwatercouldpromotetheH,O,OH,HO2radicalsgeneratedinlowtemperature combustionstage(LTC)fromtheviewofpurechemicalkinetics,whichcouldbefiredaheadoftime.SensitivityanalysisrevealsthattheisomerizationofalkylperoxideofnheptaneintheLTCstageandresolvedhydrogenperoxidecouldbeproducedaccelerationbymixingwaterwhichalsomakenheptanerapiddecompositionandoxidation.

Key words: DIdieselengine, numericalsimulation, wateremulsiondiesel, chemicalkinetics, nheptane

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