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http://dx.doi.org/10.15435/JILASSKR.2018.23.4.244

NOx Conversion Efficiency of SCR Diesel Vehicle Under Cold Start Condition  

Lee, Dong In (한국교통대학교 자동차공학과)
Yu, Young Soo (한국교통대학교 자동차공학과)
Park, Junhong (국립환경과학원 교통환경연구소)
Chon, Mun Soo (한국교통대학교 자동차공학과)
Cha, Junepyo (한국교통대학교 자동차공학과)
Publication Information
Journal of ILASS-Korea / v.23, no.4, 2018 , pp. 244-253 More about this Journal
Abstract
Recently, The ministry of Environment in korea have introduced Euro-6d temp which was strengthened at the same time as Europe. Small Light-duty passenger vehicles need the SCR system of after-treatment to meet enhanced emission regulations. However, SCR system has a low conversion efficiency in a low temperature less than 200 degree. In this study, the NOx conversion efficiency of SCR system was analyzed by installing a NOx sensors and a temperature sensors in a diesel vehicle. Also, in order to analyze the effect of the cold-start, the test was performed on the same RDE route and compared with the test of hot-start. As a result, SCR system has characteristics of low conversion efficiency under cold-start conditions.
Keywords
Emission regulations; RDE-LDV; PEMS; Cold-start; Hot-start; SCR;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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