Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70002
DC FieldValueLanguage
dc.contributor.authorYoung, L.H.en_US
dc.contributor.authorLiou, Y.J.en_US
dc.contributor.authorCheng, M.T.en_US
dc.contributor.authorLu, J.H.en_US
dc.contributor.authorYang, H.H.en_US
dc.contributor.authorTsai, Y.I.en_US
dc.contributor.authorWang, L.C.en_US
dc.contributor.authorCheng, C.B.en_US
dc.contributor.authorLai, J.S.en_US
dc.date2012zh_TW
dc.date.accessioned2014-06-11T05:59:13Z-
dc.date.available2014-06-11T05:59:13Z-
dc.identifier.issn0304-3894zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/70002-
dc.description.abstractDiesel engine exhaust contains large numbers of submicrometer particles that degrade air quality and human health. This study examines the number emission characteristics of 10-1000 nm nonvolatile particles from a heavy-duty diesel engine, operating with various waste cooking oil biodiesel blends (B2, B10 and B20), engine loads (0%, 25%, 50% and 75%) and a diesel oxidation catalyst plus diesel particulate filter (DOC + DPF) under steady modes. For a given load, the total particle number concentrations (N-TOT) decrease slightly, while the mode diameters show negligible changes with increasing biodiesel blends. For a given biodiesel blend, both the N-TOT and mode diameters increase modestly with increasing load of above 25%. The N-TOT at idle are highest and their size distributions are strongly affected by condensation and possible nucleation of semivolatile materials. Nonvolatile cores of diameters less than 16 nm are only observed at idle mode. The DOC + DPF shows remarkable filtration efficiency for both the core and soot particles, irrespective of the biodiesel blend and engine load under study. The N-TOT post the DOC + DPF are comparable to typical ambient levels of similar to 10(4) cm(-3). This implies that, without concurrent reductions of semivolatile materials, the formation of semivolatile nucleation mode particles post the aftertreatment is highly favored. (C) 2011 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of Hazardous Materialsen_US
dc.relation.ispartofseriesJournal of Hazardous Materials, Volume 199, Page(s) 282-289.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.jhazmat.2011.11.014en_US
dc.subjectDiesel engine exhausten_US
dc.subjectNonvolatile particlesen_US
dc.subjectNumber size distributionen_US
dc.subjectEmission control technologyen_US
dc.subjectnucleation mode particlesen_US
dc.subjecttransient operationsen_US
dc.subjectemissionsen_US
dc.subjectvehicleen_US
dc.subjectsooten_US
dc.subjectnanoparticlesen_US
dc.subjectaerosolsen_US
dc.subjectairen_US
dc.subjectspectrometeren_US
dc.subjectnanoen_US
dc.titleEffects of biodiesel, engine load and diesel particulate filter on nonvolatile particle number size distributions in heavy-duty diesel engine exhausten_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.jhazmat.2011.11.014zh_TW
item.grantfulltextnone-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeJournal Article-
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