Influence of Oxymethylene Ethers (OME n ) in Mixtures with a Diesel Surrogate

Sandra Richter, Trupti Kathrotia, Marina Braun-Unkhoff, Clemens Naumann and Markus Köhler
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Sandra Richter: German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
Trupti Kathrotia: German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
Marina Braun-Unkhoff: German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
Clemens Naumann: German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
Markus Köhler: German Aerospace Center (DLR), Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany

Energies, 2021, vol. 14, issue 23, 1-13

Abstract: Within this work the effects of blending oxymethylene ethers (OME n ) to a diesel surrogate (50 mol% n-dodecane, 30 mol% farnesane, and 20 mol% 1-methylnaphthalene) were investigated by performing two different types of experiments: measurements of the sooting propensity and of the laminar burning velocity, each in laminar premixed flames. For the sooting propensity, OME 3 , OME 4 , and OME 5 were considered as blending compounds—each in mass fractions of 10%, 20%, and 30%. The sooting propensity was found to depend strongly on the OME n blending grade but not on its chain length. In addition, the effect on the laminar burning velocity was studied for OME 4 and the admixture of 30% OME 4 with diesel surrogate for the first time. This admixture was found to lead to increased burning velocities; however, much less than might be foreseen when considering the respective values of the neat fuels.

Keywords: oxymethylene ether; alternative fuel; diesel; laminar burning velocity; sooting propensity; road transport (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: 2021
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