Kinetic Modeling Study on the Combustion Characterization of Synthetic C3 and C4 Alcohols for Lean Premixed Prevaporized Combustion

Solmaz Nadiri, Paul Zimmermann, Laxmi Sane, Ravi Fernandes, Friedrich Dinkelacker and Bo Shu
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Solmaz Nadiri: Department of Physical Chemistry, Physikalisch-Technische Bundesanstalt 100, 38116 Braunschweig, Germany
Paul Zimmermann: Cluster of Excellence SE2A—Sustainable and Energy-Efficient Aviation, Technische Universität Braunschweig, 38106 Braunschweig, Germany
Laxmi Sane: Department of Physical Chemistry, Physikalisch-Technische Bundesanstalt 100, 38116 Braunschweig, Germany
Ravi Fernandes: Department of Physical Chemistry, Physikalisch-Technische Bundesanstalt 100, 38116 Braunschweig, Germany
Friedrich Dinkelacker: Cluster of Excellence SE2A—Sustainable and Energy-Efficient Aviation, Technische Universität Braunschweig, 38106 Braunschweig, Germany
Bo Shu: Department of Physical Chemistry, Physikalisch-Technische Bundesanstalt 100, 38116 Braunschweig, Germany

Energies, 2021, vol. 14, issue 17, 1-26

Abstract: To reach sustainable aviation, one approach is to use electro-fuels (e-fuels) within the gas turbine engines. E-fuels are CO 2 -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 prevaporized (LPP) combustion, where most of the non-CO 2 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.

Keywords: lean premixed prevaporized; e-fuels; ignition delay time; laminar burning velocity; chemical kinetic modeling (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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