Effects of Oxygenenriched Fuel and Intake Oxygen Concentration on Diesel Engine Combustion and Emission

ZENG Dongjian1; 2; LENG Songpeng1; 2; JI Kaikai1; 2; LIU Chenghao1; WU Hao1

doi:10.3969/j.issn.10012222.2017.06.006

Vehicle Engine ›› 2017, Vol. 0 ›› Issue (6) : 30-35. DOI: 10.3969/j.issn.10012222.2017.06.006

Effects of Oxygenenriched Fuel and Intake Oxygen Concentration on Diesel Engine Combustion and Emission

ZENG Dongjian^1,2,LENG Songpeng^1,2,JI Kaikai^1,2,LIU Chenghao¹,WU Hao¹

Author information +

History +

Abstract

The effects of oxygen content in blended fuel on combustion and emission of diesel engine were researched under different intake oxygen concentration on a 4cylinder high pressure common rail diesel engine by mixing 0%, 10% and 20% mass faction of nbutanol into diesel respectively. The results show that the ignition delay periods of three blended fuels keep almost constant when the volume fraction of intake air oxygen is between 20% and 21%. The increase of blending ratio leads to the increase of oxygen content of blended fuel so that the ignition delay period prolongs. And the effects of fuel properties on ignition delay period increase with the decrease of oxygen volume fraction of intake air. In addition, the increase of oxygen content improved soot emission and indicated thermal efficiency but had little influence on NO_x emission. When the oxygen volume fraction of intake air is lower than 15%, the active effect of oxygen content of blended fuel on indicated thermal efficiency weakens.

Key words

blended fuel / oxygen-enriched fuel / ignition delay period / combustion / emission

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZENG Dongjian1,2,LENG Songpeng1,2,JI Kaikai1,2,LIU Chenghao1,WU Hao1. Effects of Oxygenenriched Fuel and Intake Oxygen Concentration on Diesel Engine Combustion and Emission[J]. Vehicle Engine. 2017, 0(6): 30-35 https://doi.org/10.3969/j.issn.10012222.2017.06.006