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ZHOU Yuxiang, ZHANG Peili, JIANG Xinsheng, MA Chi, LIANG Jianjun, WANG Dong, HE Donghai. Influence of length-diameter ratio and volume on hydrocarbon explosion overpressure characteristics in a closed square pipeline[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0366
Citation: ZHOU Yuxiang, ZHANG Peili, JIANG Xinsheng, MA Chi, LIANG Jianjun, WANG Dong, HE Donghai. Influence of length-diameter ratio and volume on hydrocarbon explosion overpressure characteristics in a closed square pipeline[J]. Explosion And Shock Waves. doi: 10.11883/bzycj-2024-0366

Influence of length-diameter ratio and volume on hydrocarbon explosion overpressure characteristics in a closed square pipeline

doi: 10.11883/bzycj-2024-0366
  • Received Date: 2024-09-28
  • Rev Recd Date: 2024-11-05
  • Available Online: 2024-12-04
  • In order to effectively predict and control the consequences of fuel-air mixture explosions in enclosed spaces and thereby reduce the casualties and property losses caused by accidents, the relationship between the explosive overpressure characteristics of fuel-air mixtures and the spatial scale of explosions was investigated. Closed square pipes with varying length-diameter ratios, volumes, and lengths were used to examine the impact of fuel-air mixture explosion overpressure characteristics by keeping the initial oil and gas concentration, ignition position, and ignition energy constant. The experimental results show that the rate of overpressure rise goes through three stages: a rapid increase period, a continuous oscillation period, and an attenuation termination period, which reveals the dynamic relationship between reaction rate and heat loss. The reduce of the nozzle area and the increase of the internal surface area of the pipeline can both lead to the decrease of the the maximum overpressure, the average overpressure rise rate, the maximum overpressure rise rate, and the explosion power. The further analysis of the experimental results reveals that the change in the nozzle area will directly affect the flame front area and reaction rate, with a more direct and significant impact on the maximum overpressure. The changes in the inner surface area have a relatively indirect effect on the maximum overpressure by regulating energy transfer and heat loss. Additionally, pipeline length is a crucial factor affecting the time to reach maximum overpressure. The increase of the pipeline not only increases the heat loss but also delays the superposition time point of the reflected wave and the incident wave, with the energy of the reflected wave undergoing relative attenuation.
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  • [1]
    MA G W, HUANG Y M, LI J D. Risk analysis of vapour cloud explosions for oil and gas facilities [M]. Singapore: Springer, 2019. DOI: 10.1007/978-981-13-7948-2.
    [2]
    魏树旺, 蒋新生, 徐建楠, 等. 狭长受限空间油气爆炸抑制实验研究 [J]. 振动与冲击, 2017, 36(10): 51–56,62. DOI: 10.13465/j.cnki.jvs.2017.10.009.

    WEI S W, JIANG X S, XU J N, et al. Experiment study on the gasoline-air mixture explosion suppression in a long-narrow confined space [J]. Journal of Vibration and Shock, 2017, 36(10): 51–56,62. DOI: 10.13465/j.cnki.jvs.2017.10.009.
    [3]
    LI T, WANG L Q, MA H H, et al. Explosion characteristics of H2/CH4/N2O at fuel-lean and stoichiometric conditions [J]. Combustion Science and Technology, 2022, 194(8): 1631–1642. DOI: 10.1080/00102202.2020.1825400.
    [4]
    MITU M, BRANDES E. Influence of pressure, temperature and vessel volume on explosion characteristics of ethanol/air mixtures in closed spherical vessels [J]. Fuel, 2017, 203: 460–468. DOI: 10.1016/j.fuel.2017.04.124.
    [5]
    CHENG F M, CHANG Z C, LUO Z M, et al. Large eddy simulation and experimental study of the effect of wire mesh on flame behaviours of methane/air explosions in a semi-confined pipe [J]. Journal of Loss Prevention in the Process Industries, 2020, 68: 104258. DOI: 10.1016/j.jlp.2020.104258.
    [6]
    杜扬, 李国庆, 吴松林, 等. T型分支管道对油气爆炸强度的影响 [J]. 爆炸与冲击, 2015, 35(5): 729–734. DOI: 10.11883/1001-1455(2015)05-0729-06.

    DU Y, LI G Q, WU S L, et al. Explosion intensity of gasoline-air mixture in the pipeline containing a T-shaped branch pipe [J]. Explosion and Shock Waves, 2015, 35(5): 729–734. DOI: 10.11883/1001-1455(2015)05-0729-06.
    [7]
    SALVADO F C, TAVARES A J, TEIXEIRA-DIAS F, et al. Confined explosions: the effect of compartment geometry [J]. Journal of Loss Prevention in the Process Industries, 2017, 48: 126–144. DOI: 10.1016/j.jlp.2017.04.013.
    [8]
    MITTAL M. Explosion pressure measurement of methane-air mixtures in different sizes of confinement [J]. Journal of Loss Prevention in the Process Industries, 2017, 46: 200–208. DOI: 10.1016/j.jlp.2017.02.022.
    [9]
    HUANG L J, WANG Y, ZHANG L, et al. Influence of pressure on the flammability limits and explosion pressure of ethane/propane-air mixtures in a cylinder vessel [J]. Journal of Loss Prevention in the Process Industries, 2022, 74: 104638. DOI: 10.1016/j.jlp.2021.104638.
    [10]
    李静野, 蒋新生, 李进, 等. 长径比对管道油气爆炸特性与火焰传播规律影响研究[J]. 中国安全生产科学技术, 2020, 16(8): 88-94. DOI: 10.11731/jissn.1673-193x.2020.08.014.

    LI J Y, JIANG X S, LI J, et al. Study on influence of length-diameter ratio on explosion characteristics and flame propagation laws of gasoline-air mixture in pipeline [J]. Journal of Safety Science and Technology, DOI: 10.11731/jissn.1673-193x.2020.08.014.
    [11]
    赵祥迪, 张广文, 郑毅, 等. 狭长通道内部丙烷气体爆炸冲击实验与模拟分析 [J]. 中国安全生产科学技术, 2024, 20(3): 40–45. DOI: 10.11731/j.issn.1673-193x.2024.03.006.

    ZHAO X D, ZHANG G W, ZHENG Y, et al. Experimental and numerical analysis on propane gas explosion in narrow and long channel [J]. Journal of Safety Science and Technology, 2024, 20(3): 40–45. DOI: 10.11731/j.issn.1673-193x.2024.03.006.
    [12]
    李重情, 穆朝民, 许登科, 等. 空腔长度对瓦斯爆炸冲击波传播影响研究 [J]. 采矿与安全工程学报, 2018, 35(6): 1293–1300. DOI: 10.13545/j.cnki.jmse.2018.06.028.

    LI Z Q, MU C M, XU D K, et al. Influence of cavity length on shock wave propagation of gas explosion [J]. Journal of Mining & Safety Engineering, 2018, 35(6): 1293–1300. DOI: 10.13545/j.cnki.jmse.2018.06.028.
    [13]
    王波, 杜扬, 李国庆, 等. 细长密闭管道内油气爆炸特性研究 [J]. 振动与冲击, 2017, 36(9): 80–85,145. DOI: 10.13465/j.cnki.jvs.2017.09.013.

    WANG B, DU Y, LI G Q, et al. Tests for explosion characteristics of gasoline-air mixture in an elongated closed tube [J]. Journal of Vibration and Shock, 2017, 36(9): 80–85,145. DOI: 10.13465/j.cnki.jvs.2017.09.013.
    [14]
    冯路阳. 管道结构对瓦斯爆炸压力及温度的影响研究 [D]. 阜新: 辽宁工程技术大学, 2017.
    [15]
    蒋新生, 魏树旺, 袁广强, 等. 狭长管道油气爆炸流场分布特征规律及分析 [J]. 中国安全生产科学技术, 2016, 12(8): 130–134. DOI: 10.11731/j.issn.1673-193x.2016.08.022.

    JIANG X S, WEI S W, YUAN G Q, et al. Characteristic rules and analysis of flow field distribution for gasoline-air mixture explosion in narrow and long pipeline [J]. Journal of Safety Science and Technology, 2016, 12(8): 130–134. DOI: 10.11731/j.issn.1673-193x.2016.08.022.
    [16]
    李国庆, 张笈玮, 武军, 等. 方管内汽油-空气混合气体密闭爆炸和泄爆特性研究 [J]. 爆炸与冲击, 2020, 40(10): 102101. DOI: 10.11883/bzycj-2019-0416.

    LI G Q, ZHANG J W, WU J, et al. Characteristics of closed and vented explosions of gasoline-air mixture in a square tube [J]. Explosion and Shock Waves, 2020, 40(10): 102101. DOI: 10.11883/bzycj-2019-0416.
    [17]
    BI M S, DONG C J, ZHOU Y H. Numerical simulation of premixed methane–air deflagration in large L/D closed pipes [J]. Applied Thermal Engineering, 2012, 40: 337–342. DOI: 10.1016/j.applthermaleng.2012.01.065.
    [18]
    RAZUS D, BRINZEA V, MITU M, et al. Temperature and pressure influence on explosion pressures of closed vessel propane–air deflagrations [J]. Journal of Hazardous Materials, 2010, 174(1/2/3): 548–555. DOI: 10.1016/j.jhazmat.2009.09.086.
    [19]
    刘冲, 杜扬, 李国庆, 等. 狭长密闭空间内油气爆炸火焰特性大涡模拟 [J]. 化工学报, 2018, 69(12): 5348–5358. DOI: 10.11949/j.issn.0438-1157.20180614.

    LIU C, DU Y, LI G Q et al. Large eddy simulation of gasoline-air mixture explosion in closed narrow-long space [J]. CIESC Journal, 2018, 69(12): 5348–5358. DOI: 10.11949/j.issn.0438-1157.20180614.
    [20]
    CAMMAROTA F, BENEDETTO A D, RUSSO P, et al. Experimental analysis of gas explosions at non-atmospheric initial conditions in cylindrical vessel [J]. Process Safety and Environmental Protection, 2010, 88(5): 341–349. DOI: 10.1016/j.psep.2010.05.001.
    [21]
    METGHALCHI M, KECK J C. Burning velocities of mixtures of air with methanol, isooctane, and indolene at high pressure and temperature [J]. Combustion and Flame, 1982, 48: 191–210. DOI: 10.1016/0010-2180(82)90127-4.
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