Thermal Management of Diesel Engine Aftertreatment System Based on Ultra-Low Nitrogen Oxides Emission-Reference-Cited by-同舟云学术

Thermal Management of Diesel Engine Aftertreatment System Based on Ultra-Low Nitrogen Oxides Emission

Published:2023-12-27 Issue:1 Volume:14 Page:237
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Sun Ke¹,Zhang Gecheng¹,Wang Zhengyong¹,Li Da¹,Li Guoxiang¹,Bai Shuzhan¹,Lin Chunjin²,Cheng Hao³

Affiliation:

1. School of Energy and Power Engineering, Shandong University, Jinan 250061, China

2. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China

3. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China

Abstract

To achieve diesel engine ultra-low nitrogen oxide emission, light-off selective catalyst reduction (LO-SCR) has been suggested for better performance with lower exhaust temperature. An electric heater upstream of the exhaust aftertreatment system was applied to significantly decrease the NOx emission at a low exhaust temperature. With a 7.2 kW electric heater coupled with LO-SCR, the NOx emission during 200~500 s of the world harmonized transient cycle (WHTC) decreased from 282.6 ppm to 61.5 ppm, which is a decrease of 45%. Application of an upstream diesel oxidation catalyst (DOC) decreased the NOx emission by 63% at the same interval at the cost of worse cold-start performance. The urea input was also adjusted to avoid NOx emission during the latter part of the WHTC.

Funder

Construction Machinery Intelligent Equipment Innovation and Entrepreneurship Community of Shandong, China

Department of Science & Technology of Shandong Province, China

Asset & Laboratory Management Department of Shandong University, China

Undergraduate School of Shandong University, China

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Link

https://www.mdpi.com/2076-3417/14/1/237/pdf

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