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Evaporation and Autoignition Characteristics of JP-10 Droplets with Hyperbranched Polyester as Additive

Author

Listed:
  • Derui Jin

    (Department of Chemistry, Zhejiang University, Hangzhou 310058, China)

  • Ji Mi

    (Department of Chemistry, Zhejiang University, Hangzhou 310058, China)

  • Yongsheng Guo

    (Department of Chemistry, Zhejiang University, Hangzhou 310058, China
    Center of Chemistry for Frontier Technologies, Zhejiang University, Hangzhou 310058, China)

  • Yitong Dai

    (Center of Chemistry for Frontier Technologies, Zhejiang University, Hangzhou 310058, China
    College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China)

  • Wenjun Fang

    (Department of Chemistry, Zhejiang University, Hangzhou 310058, China
    Center of Chemistry for Frontier Technologies, Zhejiang University, Hangzhou 310058, China)

Abstract

It was found in our previous work that hyperbranched polyester (HPE) can generate radicals and accelerate the chemical reactions of hydrocarbon fuels used as initiators. In this work, the evaporation and autoignition characteristics of JP-10 droplets with or without HPE were investigated using the high-speed backlight imaging technique in detail. The results indicate that the puffing and micro-explosion phenomena of HPE-blended JP-10 droplets can accelerate fuel evaporation and autoignition. When a 0.1% mass concentration of HPE was used, the droplet lifetime was reduced by 16.5% in evaporation at 850 K and 18.0% in autoignition at 900 K. A mechanism of HPE that promotes puffing and micro-explosions was proposed by analyzing droplet images of combustion and SEM images of combustion residues. Overall, this study provides a method for improving the evaporation and autoignition performance of JP-10.

Suggested Citation

  • Derui Jin & Ji Mi & Yongsheng Guo & Yitong Dai & Wenjun Fang, 2023. "Evaporation and Autoignition Characteristics of JP-10 Droplets with Hyperbranched Polyester as Additive," Energies, MDPI, vol. 16(8), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:8:p:3333-:d:1119061
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