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dc.contributor.authorYang, Seung Yeon
dc.contributor.authorChung, Suk Ho
dc.date.accessioned2015-09-10T14:18:10Z
dc.date.available2015-09-10T14:18:10Z
dc.date.issued2013-03-25
dc.identifier.citationYang, S. Y., & Chung, S. H. (2013). An experimental Study on the Effects of High-Pressure and Multiple Injection Strategies on DI Diesel Engine Emissions. SAE Technical Paper Series. doi:10.4271/2013-01-0045
dc.identifier.doi10.4271/2013-01-0045
dc.identifier.urihttp://hdl.handle.net/10754/577101
dc.description.abstractAn experimental study on effects of high-pressure injections in conjunction with split fuel injections were conducted on an AVL single cylinder DI diesel engine. Various injection schemes were studied through the use of an electronically controlled, common rail injection system capable of injection pressures up to 200 MPa and a maximum of six injections per combustion event. Up to 100 MPa of the fuel injection pressure, the higher injection pressures create faster combustion rates that result in the higher in-cylinder gas temperatures as compared to conventional low-pressure fuel injection systems. When applying high-pressure injections, particulate emission reductions of up to 50% were observed with no change in hydrocarbon emissions, reductions of CO emissions and only slightly higher NOx emissions. Over 100 MPa, on the other hand, the higher injection pressures still reduced up to almost zero-level of particulate emission, at the same time that the NO emission is reduced greatly. Under these high-pressure injection conditions, strong correlations between soot and CO emissions were observed, which compete for the oxidizing OH species. Multiple or split high-pressure injections also investigated as a means to decrease particulate emissions. As a result, a four-split injection strategy resulted in a 55% reduction in particulates and with little or no penalty on NOx emissions. The high pressure split injection strategy with EGR was more effective in reducing particulate and CO emissions simultaneously. Copyright © 2013 SAE International and Copyright © 2013 TSAE.
dc.publisherSAE International
dc.titleAn experimental study on the effects of high-pressure and multiple injection strategies on DI diesel engine emissions
dc.typeConference Paper
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Laser Diagnostics Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSAE Technical Paper Series
dc.conference.date1 April 2013 through 3 April 2013
dc.conference.name17th Asia Pacific Automotive Engineering Conference, APAC 2013
dc.conference.locationBangkok
kaust.personYang, Seung Yeon
kaust.personChung, Suk Ho


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