Experimental and Numerical Study on the Sooting Behaviors of Furanic Biofuels in Laminar Counterflow Diffusion Flames

Qianqian Mu, Fuwu Yan, Jizhou Zhang, Lei Xu and Yu Wang
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Qianqian Mu: Laboratory for Advanced Combustion, School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Fuwu Yan: Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan 430070, China
Jizhou Zhang: Laboratory for Advanced Combustion, School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Lei Xu: School of New Energy, Nanjing University of Science and Technology, Jiangyin 214443, China
Yu Wang: Laboratory for Advanced Combustion, School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China

Energies, 2021, vol. 14, issue 18, 1-16

Abstract: Furanic biofuels have received increasing research interest over recent years, due to their potential in reducing greenhouse gas emissions and mitigating the production of harmful pollutants. Nevertheless, the heterocyclic structure in furans make them readily to produce soot, which requires an in-depth understanding. In this study, the sooting characteristic of several typical furanic biofuels, i.e., furan, 2-methylfuran (MF), and 2,5-dimethylfuran (DMF), were investigated in laminar counterflow flames. Combined laser-based soot measurements with numerical analysis were performed. Special focus was put on understanding how the fuel structure of furans could affect soot formation. The results show that furan has the lowest soot volume fraction, followed by DMF, while MF has the largest value. Kinetic analyses revealed that the decomposition of MF produces high amounts of C3 species, which are efficient benzene precursors. This may be the reason for the enhanced formation of polycyclic aromatic hydrocarbons (PAHs) and soot in MF flames, as compared to DMF and furan flames. The major objectives of this work are to: (1) understand the sooting behavior of furanic fuels in counterflow flames, (2) elucidate the fuel structure effects of furans on soot formation, and (3) provide database of quantitative soot concentration for model validation and refinements.

Keywords: soot formation; furans fuel; 2,5-dimethylfuran; counterflow flames; light extinction (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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