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Study of Parameters and Theory of Sucrose Dust Explosion

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  • Juju Jiang

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China)

  • Xiaoquan Li

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
    School of Business, University of Southern Queensland, Toowoomba 4350, Australia)

  • Siting Liang

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China)

  • Yuankun Zhong

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China)

  • Lei Yang

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China)

  • Peng Hao

    (School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China)

  • Jeffrey Soar

    (School of Business, University of Southern Queensland, Toowoomba 4350, Australia)

Abstract

To investigate the parameters of sucrose dust explosion, the minimum ignition energy (MIE) and minimum ignition temperature (MIT) were evaluated. The experiments tested the MIE of sucrose dust under different conditions of dust quantity, ignition delay time (IDT), and powder injection pressure (PIP). The experiments tested the MIT of different particle sizes. The results demonstrate that the MIE of sucrose powder under three conditions was an open-up quadratic polynomial. When the dust quantity, the IDT, and PIP were 0.5 g (417 g/m 3 ), 90 ms, and 150 kPa, respectively, the MIE was 58.9 mJ, 62.6 mJ, and 52.4 mJ. The MIT was positively correlated with the particle size of sucrose dust, and the MIT was 340 °C. At the molecular level, the “O–H” bonds of the sucrose molecule hydroxyl groups were broken by the discharge of electrodes or high temperature to generate H 2 . The combustion of H 2 caused the explosion to spread to the surrounding sucrose dust and made the deposited dust rise, forming an interlocking explosion. The explosion would not stop until the dust concentration dropped below the lowest explosion limit. The results of this study can provide guidance for sucrose enterprises to prevent dust explosion accidents.

Suggested Citation

  • Juju Jiang & Xiaoquan Li & Siting Liang & Yuankun Zhong & Lei Yang & Peng Hao & Jeffrey Soar, 2022. "Study of Parameters and Theory of Sucrose Dust Explosion," Energies, MDPI, vol. 15(4), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:4:p:1439-:d:750920
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    References listed on IDEAS

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    2. Reyhane Youssefi & Tom Segers & Frederik Norman & Jörg Maier & Günter Scheffknecht, 2021. "Experimental Investigations of the Ignitability of Several Coal Dust Qualities," Energies, MDPI, vol. 14(19), pages 1-15, October.
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