Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Xuewen Zhang, Xiang Huang, Peiyong Ni () and Xiang Li
Additional contact information
Xuewen Zhang: School of Mechanical Engineering, Nantong University, Nantong 226019, China
Xiang Huang: School of Mechanical Engineering, Nantong University, Nantong 226019, China
Peiyong Ni: School of Mechanical Engineering, Nantong University, Nantong 226019, China
Xiang Li: School of Mechanical Engineering, Nantong University, Nantong 226019, China

Energies, 2023, vol. 16, issue 13, 1-21

Abstract: Reducing diesel engine emissions under cold start conditions has become much more valuable as environmental issues become more important. Regarding diesel engine emissions under cold start conditions, this review summarizes the emission mechanisms and specifically focuses on the research progress of four reduction strategies: biodiesel utilization, intake heating, injection optimization, and aftertreatment technologies. In general, adding biodiesel and Di-Ethyl-Ether (DEE) could provide the benefit of reducing emissions and maintaining engine performance. Intake heating and appropriate injection strategies could also effectively reduce emissions under cold start conditions. Unlike normal operating conditions, lean nitrogen oxide traps (LNT) or electrically heated catalysts (EHC) should be utilized in the aftertreatment of diesel engines to minimize emissions under cold start conditions. By offering the valuable information above, this review could be a helpful reference in reduction strategies for diesel engines under cold start conditions in both academia and industry.

Keywords: cold start; diesel engine; emissions; reduction strategies; aftertreatment technology (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/13/5192/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/13/5192/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:13:p:5192-:d:1187967

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().