Potentials of oxymethylene-dimethyl-ether in diesel engine combustion

Abstract The increasing CO 2 concentration in the atmosphere and resulting climate change require an immediate efficient reduction of anthropogenic carbon-dioxide emission. This target can be achieved by usage -neutral fuels even with current technologies (Schemme et al. Int J Hydrogen Energy 45:5395–5414, 2020). Diesel engines particular are amongst most prime movers. Using oxymethylene-dimethyl-ether (OME) it is possible to solve hitherto existing Soot-NO x -Trade-off. OME has bounded oxygen molecular chain. reduces formation soot, but equally calorific value. But considerance physical chemical properties OME, could useful optimize standard diesel engine into engine. As a result, single-cylinder tests were performed obtain detailed analysis differences between OME3-5 commercially available DIN EN 590 Diesel. Based on fact that gravimetrically less than half value diesel, twice fuel mass must injected for same energy release combustion chamber. Therefore, at beginning investigations, variation injector flow rate was carried out means different nozzle hole diameters. evaluation results included fundamental characteristics both determination efficiency-increasing potentials conversion OME3-5. Due lower ignition delay shorter time optimisation injection setting became apparent. Higher flows over chamber wall noticeable operation OME. To get bottom this, investigations supported optically accessible high-pressure transparent optical images showed narrower cone angle greater penetration depth jet compared jet. confirmed from tests. provides further potential design compensate these deficits. Overall, this work shows classic without any significant loss efficiency little effort hardware. However, also achieve more use synthetic minor adjustments.