Investigation of the Emission Characteristics of Light-Duty Diesel Vehicles in Korea Based on EURO-VI Standards According to Type of After-Treatment System

Hyung Jun Kim, Sang Hyun Lee, Sang Il Kwon, Sangki Park, Jonghak Lee, Ji Hoon Keel, Jong Tae Lee and Suhan Park
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Hyung Jun Kim: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Sang Hyun Lee: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Sang Il Kwon: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Sangki Park: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Jonghak Lee: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Ji Hoon Keel: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Jong Tae Lee: National Institute of Environmental Research, 42 Hwangyeong-ro, Seo-gu, Inchon 22689, Korea
Suhan Park: School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea

Energies, 2020, vol. 13, issue 18, 1-18

Abstract: This study analyzed the characteristics and distribution of emissions from diesel vehicles that are sold in Korea and satisfy the Euro-6 standards, according to after-treatment systems. To identify the emission distribution of diesel vehicles according to after-treatment systems, results of the certification tests conducted on 266 vehicle models were examined. Results of the certification tests on 86 vehicle models that were manufactured based on the standards for RDE after 2017 were examined according to the engine displacement and power. The emission characteristics of six vehicle models equipped with different types of after-treatment systems were verified through certification tests in the New European Driving Cycle and Worldwide Harmonized Light Vehicle Test Procedure modes and RDE tests, according to the after-treatment systems. Specifically, a chassis dynamometer and an emission analyzer were used in the certification test modes; a portable emissions measurement system was used in the RDE test. The results indicated that the amount of NO x emissions from diesel vehicles has been constantly decreasing since 2017 due to the implementation of standards for RDE and advancements in after-treatment systems. Furthermore, it was found that selective catalyst reduction systems must be installed in vehicles to satisfy Euro-6 standards for permissible emissions on real-roads.

Keywords: light-duty diesel vehicle; Euro-6; Emission New European Driving Cycle (NEDC); Worldwide Harmonized Light Vehicle Test Procedure (WLTP); Nitrogen oxides (NO x ); Portable Emissions Measurement Systems (PEMS); green technologies (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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