Decreasing NO x of a Low-Speed Two-Stroke Marine Diesel Engine by Using In-Cylinder Emission Control Measures

Liyan Feng, Jiangping Tian, Wuqiang Long, Weixin Gong, Baoguo Du, Dan Li and Lei Chen
Additional contact information
Liyan Feng: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Jiangping Tian: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Wuqiang Long: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Weixin Gong: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Baoguo Du: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Dan Li: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China
Lei Chen: Institute of Internal Combustion Engine, Dalian University of Technology, Dalian 116024, China

Energies, 2016, vol. 9, issue 4, 1-16

Abstract: The authors applied one-dimensional (1-D) simulation and 3-D Computational Fluid Dynamics (CFD) simulation to evaluate the potential of in-cylinder control methods on a low-speed 2-stroke marine engine to reach the International Maritime Organization (IMO) Tier 3 NO x emissions standards. Reducing the combustion temperature is an important in-cylinder measure to decrease NO x emissions of marine diesel engines. Miller-cycle and Exhaust Gas Recirculation (EGR) are effective methods to reduce the maximum combustion temperature and accordingly decrease NO x emissions. The authors’ calculation results indicate that with a combination of 2-stage turbocharging, a mild Miller-cycle and 10% EGR rate, the NO x emissions can be decreased by 48% without the increased Specific Fuel Oil Consumption (SFOC) penalties; with a medium Miller-cycle and 10% EGR, NO x can be decreased by 56% with a slight increase of SFOC; with a medium Miller-cycle and 20% EGR, NO x can be decreased by 77% and meet IMO Tier 3 standards, but with the high price of a considerable increase of SFOC. The first two schemes are promising to meet IMO Tier 3 standards with good fuel economy if other techniques are combined.

Keywords: 2-stroke marine diesel engine; combustion; emissions; Miller-cycle; EGR (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: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/1996-1073/9/4/304/pdf (application/pdf)
https://www.mdpi.com/1996-1073/9/4/304/ (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:9:y:2016:i:4:p:304-:d:68673

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 ().