제어알고리즘에 따른 Urea SCR 분사 시스템의 NOx 및 NH₃ 배출 특성
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 정수진 | - |
dc.contributor.author | 이호길 | - |
dc.contributor.author | 오세두 | - |
dc.contributor.author | 박정권 | - |
dc.contributor.author | 김영득 | - |
dc.contributor.author | 심성민 | - |
dc.contributor.author | 김우승 | - |
dc.date.accessioned | 2021-06-23T15:04:33Z | - |
dc.date.available | 2021-06-23T15:04:33Z | - |
dc.date.created | 2021-02-18 | - |
dc.date.issued | 2009-11 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/40924 | - |
dc.description.abstract | The selective catalytic reduction(SCR) system is a highly-effective aftertreatment device for NOx reduction of diesel engines. Generally, the ammonia(NH₃) was generated from reaction mechanism of urea solution in the SCR system using the liquid urea as the reductant. Therefore, the precise urea dosing control is a very important factor for reducing NOx and NH₃ slip in the SCR system. This paper investigated that the effect of urea dosing control algorithms on NOx and NH₃ emission characteristics in order to minimize NOx emission and NH₃ slip. In the map-based control algorithm, the urea injection was determined by mass flow rate of exhaust gas based on engine rpm, torque and O₂, NOx concentration measured by NOx sensor. However, this algorithm cannot consider the effect of adsorption and desorption of NH₃ so that the amount of urea injection may be over- and under-estimated, which leads to NH₃ slip and deterioration of deNOx performance. Therefore, the model-based control algorithm based on physics of chemistry and mechanics has been developed in this study. The mass flow rate map obtained from engine test and NO, NO₂ and O₂ concentration measured by NOx sensor during engine test were used. A comparison of map-based and model-based control algorithms has been performed in terms of NOx emission and NH₃ slip | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | 한국자동차공학회 | - |
dc.title | 제어알고리즘에 따른 Urea SCR 분사 시스템의 NOx 및 NH₃ 배출 특성 | - |
dc.title.alternative | A Study on NOx and NH₃ Emission Characteristics of Urea SCR Dosing System According to Control Algorithms | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 김우승 | - |
dc.identifier.bibliographicCitation | 한국자동차공학회 추계학술대회 및 전시회, pp.707 - 714 | - |
dc.relation.isPartOf | 한국자동차공학회 추계학술대회 및 전시회 | - |
dc.citation.title | 한국자동차공학회 추계학술대회 및 전시회 | - |
dc.citation.startPage | 707 | - |
dc.citation.endPage | 714 | - |
dc.type.rims | ART | - |
dc.description.journalClass | 3 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | other | - |
dc.subject.keywordAuthor | SCR (Selective Catalytic Reduction,선택적환원촉매) | - |
dc.subject.keywordAuthor | Urea (요소) | - |
dc.subject.keywordAuthor | NH₃ (암모니아) | - |
dc.subject.keywordAuthor | NOx (질소산화물) | - |
dc.subject.keywordAuthor | NEDC (New European Driving Cycle) | - |
dc.identifier.url | https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01505287 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.