Experimental study on partially premixed compression ignition combustion fueled with a low octane number primary reference fuel using two-stage fuel supplying

An experimental study of partially premixed compression ignition combustion with low octane fuel was conducted on a single-cylinder engine. The effects of the external exhaust gas recirculation and intake boost on this partially premixed compression ignition combustion and emissions were investigated. During the experiments, a trade-off relationship between the NOₓ and smoke emissions was observed in this partially premixed compression ignition combustion. However, heavy exhaust gas recirculation usage has the potential to decrease NOₓ and soot emissions simultaneously at the expense of the fuel economy. It is determined that at an increased intake port pressure, the maximum in-cylinder pressure increases, and the ignition timing of the high-temperature combustion is retarded. Also, the peak value of the low-temperature combustion is slightly depressed, the peak value of the high-temperature heat release decreases significantly, and the maximum value of the diffusing burn increases to some extent. Compared to natural aspirated condition, the partially premixed compression ignition combustion with intake boost has the capability of simultaneously reducing NOₓ and soot emissions to ultra-low levels, that is, the intake boost could be an important strategy for the combustion and emission improvement in this advanced engine combustion mode.

• Record URL:
  • https://doi.org/10.1177/1468087415602822
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680874
• Supplemental Notes:
  • © IMechE 2015.
• Authors:
  • Qian, Yong
  • Wang, Xiaole
  • Ji, Libin
  • Huang, Zhen
  • Lu, Xingcai
• Publication Date: 2016-8

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 677-689
• Serial:
  • International Journal of Engine Research
  • Volume: 17
  • Issue Number: 6
  • Publisher: Sage Publications, Incorporated
  • ISSN: 1468-0874
  • EISSN: 20413149

Subject/Index Terms

• TRT Terms: Compression ignition engines; Exhaust gas recirculation; Exhaust gases; Fuel consumption; Nitrogen oxides; Octane number; Particulates; Premixing; Superchargers
• Uncontrolled Terms: Primary reference fuels
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01715768
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 3 2019 9:12AM