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Spontaneous ignition of low-concentration nano-sized Al-water slurry

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  • Phuoc, Tran X.
  • Chen, Ruey-Hung

Abstract

Spontaneous ignition of a nano-sized aluminum (Al) particles-water slurry using a hot plate was investigated. The aluminum weight fractions were 17% and 27%. The hot plate temperatures ranged from 303 to 343K. For all experimental conditions used, ignition was observed to occur at about 321K and it was followed by a rapid temperature increase to above the boiling temperature of the water. Although the thermal runaway condition did not occur until the slurry reached a temperature of 321K, it was able to react at a temperature as low as 303K and develops sufficient heat for the slurry to reach the ignition condition. The ignition kinetic data were determined showing that E/R=28619.66 (K) and k=1.2644×1037K/s for the slurry containing 17% aluminum and, the value of k was about 2.398×10m37K/s for those having 27% aluminum by weight.

Suggested Citation

  • Phuoc, Tran X. & Chen, Ruey-Hung, 2013. "Spontaneous ignition of low-concentration nano-sized Al-water slurry," Applied Energy, Elsevier, vol. 101(C), pages 567-571.
    • Handle: RePEc:eee:appene:v:101:y:2013:i:c:p:567-571
    DOI: 10.1016/j.apenergy.2012.06.033
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    References listed on IDEAS

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    1. Wang, Huizhi & Leung, Dennis Y.C. & Leung, Michael K.H., 2012. "Energy analysis of hydrogen and electricity production from aluminum-based processes," Applied Energy, Elsevier, vol. 90(1), pages 100-105.
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    Cited by:

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    2. Guo, Junyan & Gao, Ruihong & Tong, Zhaoming & Zhang, Haijun & Duan, Hongjuan & Huang, Liang & Lu, Lilin & Jia, Quanli & Zhang, Shaowei, 2023. "Three eagles with one arrow: Simultaneous production of hydrogen, aluminum ethoxide, and supported metal catalysts via efficient and facile reaction between aluminum and ethanol," Energy, Elsevier, vol. 263(PD).

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    Keywords

    Spontaneous ignition; Al-water slurry;

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