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dc.contributor.author김우승-
dc.date.accessioned2018-02-12T04:38:41Z-
dc.date.available2018-02-12T04:38:41Z-
dc.date.issued2015-06-
dc.identifier.citationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v. 85, Page. 841-851en_US
dc.identifier.issn0017-9310-
dc.identifier.issn1879-2189-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0017931015002069?via%3Dihub-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/36612-
dc.description.abstractThis paper presents an optimization of an axial catalyst distribution for the two types of optimal axial catalyst distributions: continuous exponential and discrete two-zone, to enhance the light-off of a catalytic converter with a fixed amount of a catalyst. The influences of exhaust gas temperature and mass flow rate on the two types of optimal active component distribution profiles are identified and hence an optimum value for each of the operating conditions is quantitatively established. The catalyst surface area of the optimal distribution in the upstream section is greater, and in the downstream is lower than that of the uniform distribution. As an inlet exhaust gas temperature becomes lower than the catalyst light-off temperature, i.e., about 600 K, the catalyst surface area of the optimal distribution at the monolith inlet increases greatly to attain high reaction rates at the monolith entrance. In contrast, at temperatures above 600 K, it decreases slightly and hence its variation becomes negligibly small, as compared to the variation of the inlet gas temperature. The catalyst surface area at the monolith entrance decreases gradually with the increasing mass flow rate at gas temperatures above 550 K. (C) 2015 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipThis work was supported by the research fund of Hanyang University (HY-2014-N).en_US
dc.language.isoen_USen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.subjectCold-start emissionen_US
dc.subjectCatalysten_US
dc.subjectOptimal axial distributionen_US
dc.subjectModelingen_US
dc.subjectOptimizationen_US
dc.subjectCOLD-START EMISSIONSen_US
dc.subjectCOMPONENT DISTRIBTIONen_US
dc.subjectMETAL DISTRIBUTIONen_US
dc.subjectCARBON-MONOXIDEen_US
dc.subjectCONVERTERen_US
dc.subjectOXIDATIONen_US
dc.subjectDESIGNen_US
dc.subjectOPTIMIZATIONen_US
dc.subjectPERFORMANCEen_US
dc.subjectMONOLITHSen_US
dc.titleInfluences of exhaust gas temperature and flow rate on optimal catalyst activity profilesen_US
dc.typeArticleen_US
dc.relation.volume85-
dc.identifier.doi10.1016/j.ijheatmasstransfer.2015.02.043-
dc.relation.page841-851-
dc.relation.journalINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER-
dc.contributor.googleauthorKim, Young-Deuk-
dc.contributor.googleauthorKim, Woo-Seung-
dc.contributor.googleauthorLee, Young-Jin-
dc.relation.code2015000685-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF ENGINEERING SCIENCES[E]-
dc.sector.departmentDEPARTMENT OF MECHANICAL ENGINEERING-
dc.identifier.pidwskim-
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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