TY - GEN A1 - Van Treek, Lisa A1 - Lubrano Lavadera, Marco A1 - Seidel, Lars A1 - Mauß, Fabian A1 - Konnov, Alexander A. T1 - Experimental and modelling study of laminar burning velocity of aqueous ethanol T2 - Fuel N2 - Laminar burning velocities of ethanol-water-air mixtures have been determined using the heat flux method. Aqueous ethanol contained 0–40% of water by mole fraction. Laminar premixed flat flames were stabilized on a perforated burner under adiabatic conditions for the equivalence ratio range from 0.7 to 1.4. Burning velocity measurements were performed for the initial gas temperature of 358 K and at atmospheric pressure. The results for ethanol-air flames are in good agreement with the previous data obtained using the same heat flux method. The present and literature experimental data were compared against predictions using four different kinetic models. All models show uniform behaviour over the range of ethanol dilution by water covered in the present study. However, model predictions significantly diverge from the experimental data obtained in spherical flames. To quantify the effect of dilution on the laminar burning velocity, an empirical dimensionless correlation has been derived from the experimental data and predictions of the models tested. Further numerical analyses were performed to identify the effects of water addition on laminar burning velocities. Results suggested that water strongly interacts with the H2/O2 and C1 oxidation/recombination routes. Y1 - 2019 U6 - https://doi.org/10.1016/j.fuel.2019.116069 SN - 1873-7153 VL - 257 ER - TY - GEN A1 - Van Treek, Lisa A1 - Roth, Norbert A1 - Seidel, Lars A1 - Mauß, Fabian T1 - Measurements of the laminar burning velocities of rich ethylene/air mixtures T2 - Fuel N2 - Laminar burning velocities of premixed ethylene/air flames were investigated under fuel lean and rich conditions. The laminar burning velocities were measured with the heat flux method at atmospheric pressure and unburnt gas temperatures of 298 K. The measurements have been performed for the equivalence ratio range of Φ = 0.7–2.5 using stabilized and flat flames on a perforated burner plate under adiabatic conditions. This is the first time that experimental measurements with the heat flux method of the ethylene/air flames under super fuel rich conditions are performed. The experimental data were compared against predictions using three different kinetic models and published flame speed. The measured flame speeds agree with other published data within the error margin. The experimental and predicted laminar flames do agree at fuel lean conditions, but there are some notable discrepancies under fuel rich conditions. KW - ethylene KW - laminar burning velocity KW - heat flux burner Y1 - 2020 UR - https://www.sciencedirect.com/science/article/pii/S0016236120309340 U6 - https://doi.org/10.1016/j.fuel.2020.117938 SN - 0016-2361 VL - 275 ER - TY - GEN A1 - Van Treek, Lisa A1 - Roth, Norbert A1 - Seidel, Lars A1 - Mauß, Fabian T1 - Laminar burning velocities of rich ethylene / air flames N2 - The laminar burning velocity SL of a given mixture of fuel and oxidizer is an important parameter to characterize premixed flames. SL is not only a fundamental parameter to calculate properties of turbulent flames, it is also an important target for the development of chemical kinetic mechanisms. Under fuel rich conditions it has relevance when simulating soot formation in burner stabilized flames. Many experiments on soot formation have been conducted in fuel-rich burner stabilized ethylene flames. Therefore an interest exists in experimental data for laminar burning velocity, in particular in fuel-rich ethylene flames. In the present work, ethylene / air flames were measured in the heat flux setup. Subsequently, the experimental data were compared against existing data and modelled using two kinetic models. KW - laminar burning velocity KW - ethylene / air flames KW - rich flames Y1 - 2017 UR - https://www.researchgate.net/publication/320802733_Laminar_burning_velocities_of_rich_ethylene_air_flames N1 - 3rd General Meeting and Workshop on Smart Energy Carriers in Industry – Prague, October 25 - 27, 2017 ER - TY - GEN A1 - Van Treek, Lisa A1 - Lubrano Lavadera, Marco A1 - Konnov, Alexander A. A1 - Seidel, Lars A1 - Mauß, Fabian T1 - Measurements of the laminar burning velocities of ethanol-water-air flames N2 - The laminar burning velocity of ethanol-water-air flames at atmospheric pressure and initial gas temperatures of T = 358 K was measured with the heat flux method. The mixture of ethanol-water-air contained 0%, 10%, 20%, 30% and 40% water by mole and the equivalence ratio (ϕ) range was varied from 0.7 to 1.4. The experiments were compared against predictions using three different kinetic models. Y1 - 2019 UR - https://www.researchgate.net/publication/330635016_Measurements_of_the_laminar_burning_velocities_of_ethanol-water-air_flames N1 - 1st International Conference on Smart Energy Carriers ER -