LAPSE:2023.18675
Published Article
LAPSE:2023.18675
An Experimental and Kinetic Modelling Study on Laminar Premixed Flame Characteristics of Ethanol/Acetone Mixtures
Yangxun Liu, Weinan Liu, Huihong Liao, Wenhua Zhou, Cangsu Xu
March 8, 2023
Since both ethanol and acetone are the main components in many alternative fuels, research on the burning characteristics of ethanol-acetone blends is important to understand the combustion phenomena of these alternative fuels. In the present study, the burning characteristics of ethanol-acetone fuel blends are investigated at a temperature of 358 K and pressure of 0.1 MPa with equivalence ratios ranging from 0.7 to 1.4. Ethanol at 100% vol., 25% vol. ethanol/75% vol. acetone, 50% vol. ethanol/50% vol. acetone, 75% vol. ethanol/25% vol. acetone, and 100% vol. acetone are studied by the constant volume combustion chamber (CVCC) method. The results show that the laminar burning velocities of the fuel blends are between that of 100% vol. acetone and 100% vol. ethanol. As the ethanol content increases, the laminar burning velocities of the mixed fuels increase. Furthermore, a detailed chemical kinetic mechanism (AramcoMech 3.0) is used for simulating the burning characteristics of the mixtures. The directed relation graph (DRG), DRG with error propagation (DRGEP), sensitivity analysis (SA), and full species sensitivity analysis (FSSA) are used for mechanism reduction. The flame structure of the skeletal mechanism does not change significantly, and the concentration of each species remains basically the same value after the reaction. The numbers of reactions and species are reduced by 90% compared to the detailed mechanism. Sensitivity and reaction pathway analyses of the burning characteristics of the mixtures indicate that the reaction C2H2+H(+M)C2H3(+M) is the key reaction.
Keywords
acetone, Ethanol, laminar burning characteristics, skeletal mechanism, spherically expanding flame
Suggested Citation
Liu Y, Liu W, Liao H, Zhou W, Xu C. An Experimental and Kinetic Modelling Study on Laminar Premixed Flame Characteristics of Ethanol/Acetone Mixtures. (2023). LAPSE:2023.18675
Author Affiliations
Liu Y: Zhejiang Technical Institute of Economics, Hangzhou 310018, China
Liu W: College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Liao H: Vehicle Engineering Center-CAE Technology Development, Geely Automobile Research Institute, Ningbo 315336, China
Zhou W: College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Xu C: College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Journal Name
Energies
Volume
14
Issue
20
First Page
6713
Year
2021
Publication Date
2021-10-15
Published Version
ISSN
1996-1073
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PII: en14206713, Publication Type: Journal Article
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doi:10.3390/en14206713
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