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Analysis of precise behavior characteristics of emulsified fuel

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Abstract

This study is a basic research on the application of the mixed emulsified fuel of diesel and hydrogen peroxide (H2O2) to the diesel engine and investigating the evaporative characteristics of the emulsified fuel. The surfactant used to mix the emulsified fuel was added by mixing the span 80 and tween 80 with a ratio of 9:1 and being fixed to 3 % of the total volume of the emulsified fuel. The mixing ratio of the emulsified fuel was selected as EF0 (Only diesel), EF2, EF12, EF22, EF32 and EF42, respectively, considering the mixing ratio of the surfactant. To analyze the evaporative characteristics of the emulsified fuel in accordance with the mixing ratio, a drop of the emulsified fuel was freely dropped to a hot plate maintained at 473 K with a spuit and then the experimental results of the drop evaporation were visualized with the Schlieren system. Then, the quantitative image analysis of the images was introduced and it could be found that droplet evaporation was promoted according to the increase of the hydrogen peroxide in the emulsified fuel. Also, numerical analysis was performed with modeling for micro droplets in the fuel based on the experimental result, and promoted-fuel evaporation was reproduced due to the microexplosion of evaporative characteristics of emulsified fuel in accordance with the increase of the mixing ratio of hydrogen peroxide. Also, for quantitative analysis of experimental results, entropy analysis based on statistical thermodynamics was carried out. Consequently, in the case of the application of emulsified fuel to the diesel engine, it is expected to simultaneously decrease the Soot and NOx generation by speedily mixture formation and the latent heat of evaporation of the emulsified fuel in the cylinder.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Dong-A University, Busan, 604-714, Korea

    Jeong Hwan Yoon & Jeong Kuk Yeom

Authors
  1. Jeong Hwan Yoon
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  2. Jeong Kuk Yeom
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Correspondence to Jeong Kuk Yeom.

Additional information

Recommended by Associate Editor Jeong Park

Jeong Hwan Yoon received his B.S. in Mechanical Engineering from Dong-A University, Busan, Korea in 2014. He is currently studying for the M.S. there. His research interests include diesel spray, combustion and statistics for analyzing experimental data, also, simulation in terms of fluid flow.

Jeong Kuk Yeom received his Ph.D. in Mechanical Engineering from Doshisha University, Kyoto, Japan in 2001. In 2006, he joined the Department of Mechanical Engineering, Dong-A University, Busan, Korea, where he is currently a Professor. He is interested in diesel spray and biodiesel fuels.

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Yoon, J.H., Yeom, J.K. Analysis of precise behavior characteristics of emulsified fuel. J Mech Sci Technol 32, 897–906 (2018). https://doi.org/10.1007/s12206-018-0140-2

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  • DOI: https://doi.org/10.1007/s12206-018-0140-2

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