Laminar Flame Speeds of DMF/Iso-octane-Air-N2/CO2 Mixtures

CATEGORY: FUEL FORMULATION
Energy Fuels, 2012, 26 (2), pp 917–925
Laminar Flame Speeds of DMF/Iso-octane-Air-N₂/CO₂ Mixtures
Qianqian Li, Jin Fu, Xuesong Wu, Chenglong Tang, and Zuohua Huang
zhhuang@mail.xjtu.edu.cn.
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, People’s Republic of China
Abstract
Researchers studied laminar combustion characteristics of 2,5-dimethylfuran (DMF)/iso-octane/air/diluent (15% N₂/85% CO₂) mixtures at atmospheric pressure and the initial temperature of 393 K using the outwardly propagating spherical flame and high speed schlieren photography.
They investigated effects of DMF concentration in the fuel mixture and dilution ratio on flame properties. Results show that laminar flame speed varied little, while the flame instability was slightly promoted as DMF concentration in the blends is increased. For all the fuels at fixed equivalence ratio, flame front morphology showed that the flame stability was enhanced with increasing dilution ratio.
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