Effects of gasoline and polyoxymethylene dimethyl ethers blending in diesel on the combustion and emission of a common rail diesel engine

By Hao Chen, Xin Su, Junhui Li, Xianglin Zhong. Energy, 2019

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To reduce the soot emissions of diesel engines, 20% polyoxymethylene dimethyl ethers (PODE) or gasoline by volume is blended in diesel (D80P20 and D80G20) and experimental studies have been carried out to compare the combustion and emission of blend fuels with diesel. Compared to diesel, D80P20 and D80G20 shorten the combustion duration, improve the brake thermal efficiency (BTE), increase the NOx emission and decrease the soot emissions and the number concentrations (NCs) of ultrafine particles (UFPs) in most cases. Strong premixed combustion and enhancement of air entrainment contribute to the highest BTE and NOx emissions of D80G20 at low and partial loads. Strong diffusion combustion contributes to the highest BTE and NOx emissions and the lowest soot and UFPs emissions of D80P20 at medium and high loads.

Subfields: Automotive Engineering, Biomedical Engineering, Fluid Flow and Transfer Processes

View Paper: https://www.semanticscholar.org/paper/f5812ca721a5bfd6c2bd6d587894a8d9a62e2636