Evaluation of the real-time de-NOx performance characteristics of a LNT-equipped Euro-6 diesel passenger car with various vehicle emissions certification cycles
DC Field | Value | Language |
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dc.contributor.author | Myung, Cha-Lee | - |
dc.contributor.author | Jang, Wonwook | - |
dc.contributor.author | Kwon, Sangil | - |
dc.contributor.author | Ko, Jinyoung | - |
dc.contributor.author | Jin, Dongyoung | - |
dc.contributor.author | Park, Simsoo | - |
dc.date.accessioned | 2021-09-03T03:06:53Z | - |
dc.date.available | 2021-09-03T03:06:53Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-08-01 | - |
dc.identifier.issn | 0360-5442 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/82589 | - |
dc.description.abstract | Advanced nitrogen oxides (NOx) after-treatment systems for diesel cars are effectively reducing tailpipe NOx emissions in laboratory test cycles; however, some de-NOx systems showed limitation for passing environmental standards during real-world driving conditions. In this study, the NOx concentration of a lean NOx trap (LNT)-equipped diesel engine were investigated over various vehicle certification cycles. The LNT performance was compared to the new European driving cycle (NEDC), world-harmonized light duty vehicle test cycle (WLTC), federal test procedure (FTP)-75, highway fuel economy test (HWFET), and U506. The real-time NOx concentration behaviors were tracked using NOx sensors at the engine-out and downstream of the LNT to determine the NOx storage and regeneration phase. The NOx conversion efficiencies were 36.3-71.7% of which reflecting the mode severity and cycle duration of the diesel engine. The tailpipe NOx emissions were 0.059 g/km during the NEDC which was within the Euro-6 emissions regulations. The NOx emissions in the WLTC, FTP-75, and US06 modes were approximately 1.9, 1.5, and 6.6 times higher than the NEDC due to the higher frequency of LNT purge and higher engine-out NOx formation. During the diesel particulate filter (DPF) regenerating stage in WLTC mode, tailpipe NOx emissions substantially increased by more than 8.8-fold. The exhaust gas recirculation (EGR) supply and lambda control scheme were closely related with strong NOx increment at de-NOx and de-PM processes. (C) 2017 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | EXHAUST-GAS RECIRCULATION | - |
dc.subject | SELECTIVE CATALYTIC-REDUCTION | - |
dc.subject | INTERNAL-COMBUSTION ENGINES | - |
dc.subject | PARTICLE EMISSIONS | - |
dc.subject | GASEOUS EMISSIONS | - |
dc.subject | FUEL CONSUMPTION | - |
dc.subject | TOXIC EMISSIONS | - |
dc.subject | COLD-START | - |
dc.subject | INJECTION | - |
dc.subject | SYSTEM | - |
dc.title | Evaluation of the real-time de-NOx performance characteristics of a LNT-equipped Euro-6 diesel passenger car with various vehicle emissions certification cycles | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Myung, Cha-Lee | - |
dc.contributor.affiliatedAuthor | Park, Simsoo | - |
dc.identifier.doi | 10.1016/j.energy.2017.05.089 | - |
dc.identifier.scopusid | 2-s2.0-85019945043 | - |
dc.identifier.wosid | 000403988000034 | - |
dc.identifier.bibliographicCitation | ENERGY, v.132, pp.356 - 369 | - |
dc.relation.isPartOf | ENERGY | - |
dc.citation.title | ENERGY | - |
dc.citation.volume | 132 | - |
dc.citation.startPage | 356 | - |
dc.citation.endPage | 369 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.subject.keywordPlus | EXHAUST-GAS RECIRCULATION | - |
dc.subject.keywordPlus | SELECTIVE CATALYTIC-REDUCTION | - |
dc.subject.keywordPlus | INTERNAL-COMBUSTION ENGINES | - |
dc.subject.keywordPlus | PARTICLE EMISSIONS | - |
dc.subject.keywordPlus | GASEOUS EMISSIONS | - |
dc.subject.keywordPlus | FUEL CONSUMPTION | - |
dc.subject.keywordPlus | TOXIC EMISSIONS | - |
dc.subject.keywordPlus | COLD-START | - |
dc.subject.keywordPlus | INJECTION | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordAuthor | Diesel NOx emissions | - |
dc.subject.keywordAuthor | Lean NOx trap | - |
dc.subject.keywordAuthor | Vehicle test modes | - |
dc.subject.keywordAuthor | Conversion efficiency | - |
dc.subject.keywordAuthor | Regeneration | - |
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