Zusammenfassung: | |
To reach sustainable aviation, one approach is to use electro-fuels (e-fuels) within the gas turbine engines. E-fuels are CO2-neutral synthetic fuels which are produced employing electrical energy generated from renewable resources, where the carbon is taken out of the atmosphere or from biomass. Our approach is, to find e-fuels, which can be utilized in the lean premixed prevapor-ized (LPP) combustion, where most of the non-CO2 emissions are prevented. One of the suitable e- fuel classes is alcohols with a low number of carbons. In this work, the autoignition properties of propanol isomers and butanol isomers as e-fuels were investigated in a high-pressure shock tube (HPST) at temperatures from 1200 to 1500 K, the pressure of 10 bar, and lean fuel-air conditions. Additional investigations on the low-temperature oxidation and flame speed of C3 and C4 alcohols from the literature were employed to develop a comprehensive mechanism for the prediction of ignition delay time (IDT) and laminar burning velocity (LBV) of the above-mentioned fuels. A numerical model based on newly developed chemical kinetics was applied to further study the IDT and LBV of fuels in comparison to the Jet-A surrogate at the engine-related conditions along with the emissions prediction of the model at lean fuel-air conditions. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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Lizenzbestimmungen: | CC BY 4.0 Unported - https://creativecommons.org/licenses/by/4.0/ |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2021 |
Schlagwörter (englisch): | Chemical kinetic modeling, E-fuels, Ignition delay time, Laminar burning velocity, Lean premixed prevaporized, Carbon dioxide, Combustion, Engines, Isomers, Predictive analytics, Shock tubes, Temperature, Combustion characterization, Emissions prediction, High pressure shock tubes, Ignition delay time, Laminar burning velocity, Lean premixed prevaporized combustions, Low-temperature oxidation, Renewable resource, Synthetic fuels |
Fachliche Zuordnung (DDC): | 620 | Ingenieurwissenschaften und Maschinenbau |
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