Adaptation and Engine Validation of an FTIR Exhaust Gas Analysis Method for C1-Based Potential GHG-Neutral Synthetic Fuels/Gasoline-Blends Containing Dimethyl Carbonate and Methyl Formate
2022-01-0688
03/29/2022
- Content
- To improve air quality in cities and limit harmful emission exposure to humans the European Commission released strict emission regulations for passenger cars in the past decade. In the near future, even stricter regulations containing more realistic/demanding driving scenarios and more exhaust gas components are expected to be released. Passenger cars fueled with gasoline are one contributor to unhealthy air conditions due to the fact, that gasoline engines emit harmful air pollutants. One option to minimize harmful emissions would be to utilize specifically tailored low emission synthetic fuels or fuel blends in internal combustion engines. Two promising candidates to replace or substitute gasoline are methyl formate (MeFo) and dimethyl carbonate (DMC) which have proven in previous studies to significantly decrease harmful pollutants especially regarding PN emissions. To be able to measure future restricted emissions like methane, ammonia, and formaldehyde as well as currently restricted emissions like CO and NOx it is an option to use an FTIR-device. The FTIR can provide a deep insight to gaseous emissions of an engine. However, the evaluation method must be adapted to the fuel and the exhaust components to provide reliable, realistic, and reproducible data. This paper provides an insight of how a currently available method for gasoline can be adopted to synthetic fuels containing DMC and MeFo. To validate the new method for these two components several fuels and fuel blends with gasoline will be analyzed. Exhaust gases of a single cylinder research engine fueled with 100V% DMC, 100V% MeFo, 65V% DMC and 35V% Mefo, five different DMC-gasoline blends and one MeFo-gasoline blend is used. Additionally, two mixtures of alkylat gasoline with Mefo and one Methanol-MeFo mixture is shown. Alkylat-gasoline is chosen due to it’s low PN-emissions and similar chemical properties as synthetically produced gasoline.
- Citation
- Kraus, C., Jakubec, P., Girhe, S., Fellner, F. et al., "Adaptation and Engine Validation of an FTIR Exhaust Gas Analysis Method for C1-Based Potential GHG-Neutral Synthetic Fuels/Gasoline-Blends Containing Dimethyl Carbonate and Methyl Formate ," SAE Technical Paper 2022-01-0688, 2022, .