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dc.contributor.authorPeng, Z.J.
dc.contributor.authorJia, M.
dc.identifier.citationPeng , Z J & Jia , M 2009 , ' Full engine cycle CFD investigation of effects of variable intake valve closing on diesel PCCI combustion and emissions ' , Energy and Fuels , vol. 23 , no. 12 , pp. 5855-5864 .
dc.identifier.otherPURE: 2220747
dc.identifier.otherPURE UUID: 26476933-90eb-47e2-aab6-1610ec7a6841
dc.identifier.otherScopus: 73649088667
dc.description.abstractA full-cycle three-dimensional computational fluid dynamics (CFD) model coupled with detailed chemical kinetics has been developed to investigate the effect of late intake valve closing (IVC) on combustion and emission characteristics in a diesel engine with premixed charge compression ignition (PCCI) combustion. The application oflate IVC was demonstrated toprovide efficient control ofignition timing and significant reduction of nitrogen oxides (NO) and soot emissions by decreasing the effective compression ratio and increasing premixing, but it possibly led to increases of hydrocarbon (HC) and carbon monoxide (CO) emissions due to low combustion temperature and insufficient oxygen amount. Parametric studies by varying intake pressure, exhaust gas recirculation (EGR) rate and start of injection (SOI) timing with varied IVC timing were conducted to explore the potential of late IVC for emission reduction in diesel PCCI engines. The results showed that, with assistance of increasing intake pressure, late IVC could reduce NO, soot, HC, and CO emissions simultaneously. A certain EGR rate and optimized SOI timing were always necessary to maintain satisfactory NO and soot emissions for diesel PCCI combustion.en
dc.relation.ispartofEnergy and Fuels
dc.titleFull engine cycle CFD investigation of effects of variable intake valve closing on diesel PCCI combustion and emissionsen
dc.contributor.institutionSchool of Engineering and Technology
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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