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Explosion Properties of LPG—Air Mixtures in a Cylindrical Vessel with Top-Center Ignition

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Chemistry and Technology of Fuels and Oils Aims and scope

A new safety-valve construction was developed and tested by studying combined dynamic and static loads between powered supports and surrounding rocks. The gas—air mixture explosion conditions were modeled to test the dynamic load. Explosion properties of the gas-air mixtures (including maximum explosion pressure, maximum rise rate of explosion pressure, explosion rime, deflagration index) were investigated experimentally at room temperature in a cylindrical chamber with top-center ignition. The results showed that the maximum explosion pressure, maximum rate of pressure rise, and deflagration index were linearly correlated to the initial pressure. On the other hand, the explosion time depended mainly on the ratio of gases and only in a limited range on the initial pressure. The experimentally measured explosion properties of LPG—air mixtures could be used in practice to study safe operation of safety valves.

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Acknowledgments

The work was financially supported by the Foundation for Scientific and Technological Projects for the Coal-Mining Industry of Shanxi Province, PRC (No. MJ2014-07).

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Authors and Affiliations

  1. College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan, China

    Yongchang Guo, Zisheng Lian & Hongbing Yuan

  2. Shanxi Rey Laboratory of Fully Mechanized Coal Mining Equipment, Taiyuan, China

    Yongchang Guo, Zisheng Lian & Hongbing Yuan

  3. Beijing Tiandi-Marco Electro-Hydraulic Control System Company Ltd, Beijing, China

    Hu Xiang

Authors
  1. Yongchang Guo
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  2. Hu Xiang
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  3. Zisheng Lian
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  4. Hongbing Yuan
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Correspondence to Zisheng Lian.

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Guo, Y., Xiang, H., Lian, Z. et al. Explosion Properties of LPG—Air Mixtures in a Cylindrical Vessel with Top-Center Ignition. Chem Technol Fuels Oils 54, 591–598 (2018). https://doi.org/10.1007/s10553-018-0964-1

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  • DOI: https://doi.org/10.1007/s10553-018-0964-1

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