가솔린과 LPG 예혼합 압축 착화 엔진의 노킹 특성Knock Characteristic Analysis of Gasoline and LPG Homogeneous Charge Compression Ignition Engine

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dc.contributor.author배충식ko
dc.contributor.author염기태ko
dc.date.accessioned2009-12-29T07:06:32Z-
dc.date.available2009-12-29T07:06:32Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2007-05-
dc.identifier.citation한국자동차공학회 논문집, v.15, no.3, pp.54 - 62-
dc.identifier.issn1225-6382-
dc.identifier.urihttp://hdl.handle.net/10203/16028-
dc.description.abstractThe knock characteristics in an engine were investigated under homogeneous charge compression ignition (HCCI) operation. Liquefied petroleum gas (LPG) and gasoline were used as fuels and injected at the intake port using port fuel injection equipment. Di-methyl ether (DME) was used as an ignition promoter and was injected directly into the cylinder near compression top dead center (TDC). A commercial variable valve timing device was used to control the volumetric efficiency and the amount of internal residual gas. Different intake valve timingsand fuel injection amounts were tested to verify the knock characteristics of the HCCI engine. The ringing intensity (RI) was used to define the intensity of knock according to the operating conditions. The RI of the LPG HCCI engine was lower than that of the gasoline HCCI engine at every experimental condition. The indicated mean effective pressure (IMEP) dropped when the RI was over 0.5 ㎿/m2 and the maximum combustion pressure was over 6.5 ㎫. There was no significant relationship between RI and fuel type. The RI can be predicted by the crank angle degree (CAD) at 50 CA. Carbon monoxide (CO) and hydrocarbon (HC) emissions were minimized at high RI conditions. The shortest burn duration under low RI was effective in achieving low HC and CO emissions.-
dc.languageKorean-
dc.language.isokoen
dc.publisher한국자동차공학회-
dc.title가솔린과 LPG 예혼합 압축 착화 엔진의 노킹 특성-
dc.title.alternativeKnock Characteristic Analysis of Gasoline and LPG Homogeneous Charge Compression Ignition Engine-
dc.typeArticle-
dc.subject.alternativeHCCI(Homogeneous Charge Compression Ignition)en
dc.subject.alternativeVVT(Variable Valve Timing)en
dc.subject.alternativeDME(Di-methyl Ether)en
dc.subject.alternativeKnockingen
dc.subject.alternativeGasolineen
dc.subject.alternativeLPG(Liquefied Petroleum Gasxbitm)en
dc.subject.alternativeRI(Ringing Intensity)en
dc.type.rimsART-
dc.citation.volume15-
dc.citation.issue3-
dc.citation.beginningpage54-
dc.citation.endingpage62-
dc.citation.publicationname한국자동차공학회 논문집-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.kciidART001054291-
dc.contributor.localauthor배충식-
dc.contributor.nonIdAuthor염기태-
dc.subject.keywordAuthorHCCI(Homogeneous Charge Compression Ignition)-
dc.subject.keywordAuthorVVT(Variable Valve Timing)-
dc.subject.keywordAuthorDME(Di-methyl Ether)-
dc.subject.keywordAuthorKnocking-
dc.subject.keywordAuthorGasoline-
dc.subject.keywordAuthorLPG(Liquefied Petroleum Gas)-
dc.subject.keywordAuthorRI(Ringing Intensity)-
dc.subject.keywordAuthor예혼합 압축 착화-
dc.subject.keywordAuthor가변 밸브 기구-
dc.subject.keywordAuthor노킹-
dc.subject.keywordAuthor가솔린-
dc.subject.keywordAuthor액화 석유 가스-
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