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Volume 36 Issue 6
Dec 2022
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Chinese Journal of High Pressure Physics  > 2022  >  36(6): 065202.
TANG Yi, YUAN Yalong, LI Kaiyuan, CHEN Xianfeng, YUAN Bihe, HE Yunlong, HUANG Chuyuan. Explosion Suppression Performance of Spherical Non-Metallic Materials for Methane Hydrogen-Doped Syngas Explosion[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065202. doi: 10.11858/gywlxb.20220609
Citation: TANG Yi, YUAN Yalong, LI Kaiyuan, CHEN Xianfeng, YUAN Bihe, HE Yunlong, HUANG Chuyuan. Explosion Suppression Performance of Spherical Non-Metallic Materials for Methane Hydrogen-Doped Syngas Explosion[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065202. doi: 10.11858/gywlxb.20220609
shu

Explosion Suppression Performance of Spherical Non-Metallic Materials for Methane Hydrogen-Doped Syngas Explosion

doi: 10.11858/gywlxb.20220609
  • 1.

    School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, Hubei, China

  • 2.

    The 713th Research Institute of China Shipbuilding Industry Corporation, Zhengzhou 450015, Henan, China

  • Received Date: 13 Jun 2022
  • Rev Recd Date: 08 Jul 2022
    • Available Online: 21 Nov 2022
  • Issue Publish Date: 05 Dec 2022
    Abstract
  • Basis on a self-built gas explosion platform, the influence of hydrogen on methane-air explosion pressure is studied when the hydrogen doping ratio is 0%, 5%, and 10%, and the explosion suppression performance of single spherical and combined spherical porous non-metallic materials for methane-hydrogen-doped syngas is explored. The experimental results show that the explosion intensity can be effectively increased after the methane-air is mixed with hydrogen, and the maximum explosion pressure and pressure rise rate increase with the increase of hydrogen volume fraction, when the hydrogen doping ratio is 10%, the maximum explosion pressure (pmax) is 245 kPa and the maximum explosion pressure rising rate (dp/dt)max is 3250 kPa/s. Spherical porous non-metallic materials can reduce the maximum explosion pressure and rising rate of syngas, and with the increase of filling length, the inhibition effect becomes more and more obvious. Compared with a single spherical porous non-metallic material, the combined spherical porous non-metallic material has a more remarkable effect on the explosion suppression of methane-hydrogen-doped syngas, and the explosion suppression effect is affected by the filling length. When the filling length is 40 cm, the maximum explosion pressure decreases by 51.02%, and the maximum explosion pressure rising rate decreases by 53.85%, and therefore its explosion suppression performance is increased by 78.58% compared with the single spherical porous non-metallic materials.

     

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