Influences of fuel concentration, fuel volume, initial temperature, and initial pressure on flame propagation and flameproof distance of methane-air deflagrations

被引:10
|
作者
Jiang, Bingyou [1 ,2 ,3 ]
Liu, Zegong [1 ,4 ]
Shi, Shulei [5 ]
Cai, Feng [1 ,4 ]
Liu, Jian [1 ,4 ]
Tang, Mingyun [1 ,4 ]
Lin, Baiquan [6 ]
机构
[1] Anhui Univ Sci & Technol, Sch Min & Safety Engn, Huainan, Peoples R China
[2] China Univ Min & Technol Beijing, State Key Lab Coal Resources & Safe Min, Beijing, Peoples R China
[3] Anhui Univ Sci & Technol, Key Lab Safety & High Efficiency Coal Min, Huainan, Peoples R China
[4] Anhui Univ Sci & Technol, Key Lab Safety & High Efficiency Coal Min, Minist Educ, Huainan, Peoples R China
[5] Anhui Univ Sci & Technol, Sch Econ & Management, Huainan, Peoples R China
[6] China Univ Min & Technol, Sch Safety Engn, Xuzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
Flameproof distance; Fuel concentration; Fuel volume; Gas explosion; Initial pressure; Initial temperature; EXPLOSION CHARACTERISTICS; NUMERICAL-SIMULATION; DETONATION TRANSITION; GAS; ACCELERATION; MIXTURES; MINE;
D O I
10.1108/HFF-04-2015-0150
中图分类号
O414.1 [热力学];
学科分类号
摘要
Purpose - The purpose of this paper is to understand a flameproof distance necessary to avoid the flame harms to underground personnel which may have great significance to the safety of underground personnel and the disaster relief of gas explosions in coal mines. Design/methodology/approach - Through a roadway with a length of 100 m and a cross-section area of 80 mm x 80 mm, the flame propagation of premixed methane-air deflagrations were simulated by using AutoReaGas software for various fuel concentrations (7, 8, 9.5, 11, and 14 percent), fuel volumes (0.0128, 0.0384, 0.064, and 0.0896 m(3)), initial temperatures (248, 268, 288, 308, and 328 K), and initial pressures (20, 60, 101.3, 150, and 200 kPa). Findings - The maximum combustion rate for each point follows a changing trend of increasing and decreasing with the distance increasing from the ignition source, and it increases with the fuel volume increasing or the initial pressure increasing, and decreases with the initial temperature increasing. However, increasing the initial temperature increases the flame arrival time for each point. The flameproof distance follows a changing trend of increasing and decreasing with the fuel concentration increasing, and it linearly increases with the fuel volume increasing or the initial temperature increasing. However, the flameproof distances are all 17m for various initial pressures. Originality/value - Increasing initial temperature increases flame arrival time for each test point. Flameproof distance increases and then decreases with fuel concentration increasing. Increasing fuel volume or initial temperature linearly increases flameproof distance. Initial pressure has little impact on the flameproof distance.
引用
收藏
页码:1710 / 1728
页数:19
相关论文
共 50 条
  • [41] Influences of Initial Temperature and Moisture on the Overpressure Rise Due to the Combustion of Alternative Fuel Gases in a Cylindrical Chamber
    Imamura, Tomohiko
    Rokugawa, Kyoya
    Hirano, Yoshichika
    Takizawa, Suguru
    15TH INTERNATIONAL SYMPOSIUM ON LOSS PREVENTION AND SAFETY PROMOTION (LOSS 2016), 2016, 48 : 349 - 354
  • [42] Relationship of flame propagation speed for methane–hydrogen fuel of the internal combustion engine with parameters of ion current and hydrogen concentration
    Shaikin A.P.
    Galiev I.R.
    Russian Aeronautics (Iz VUZ), 2016, 59 (2) : 249 - 253
  • [43] Effect of AC Electric Field on Combustion Characteristics of Methane/Air Premixed Spherical Flame at High Initial Pressure
    Du Z.
    Gao Z.
    He Z.
    Zhang H.
    Lu J.
    Guo Z.
    Bao Y.
    Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2020, 54 (03): : 80 - 87and96
  • [44] Numerical analysis on the effects of CO2 dilution on the laminar burning velocity of premixed methane/air flame with elevated initial temperature and pressure
    Xie, Mingke
    Fu, Jianqin
    Zhang, Yongxiang
    Shu, Jun
    Ma, Yinjie
    Liu, Jingping
    Zeng, Dongjian
    FUEL, 2020, 264 (264)
  • [45] Effect of a palladium catalyst and initial pressure on methane-air catalytic combustion process in a helical coil microchannel: A molecular dynamics approach
    Liu, Zhihui
    Zhu, Kejun
    Abed, Azher M.
    Toghraie, Davood
    MOLECULAR CATALYSIS, 2023, 535
  • [46] Influence of Initial Pressure and Vessel's Geometry on Deflagration of Stoichiometric Methane-Air Mixture in Small-Scale Closed Vessels
    Mitu, Maria
    Giurcan, Venera
    Razus, Domnina
    Oancea, Dumitru
    ENERGY & FUELS, 2020, 34 (03) : 3828 - 3835
  • [47] INFLUENCE OF INITIAL TEMPERATURE IRREGULARITIES AND AIR-TO-FUEL RATIO IN AFTERBURNER GTE ON SPECIFIC NOZZLE THRUST
    GRUZDEV, VN
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII AVIATSIONAYA TEKHNIKA, 1985, (02): : 21 - 24
  • [48] Effects of pressure and temperature on laminar burning velocity and flame instability of iso-octane/methane fuel blend
    Baloo, Mahdi
    Dariani, Bijan Mollaei
    Akhlaghi, Mehdi
    AghaMirsalim, Mostafa
    FUEL, 2016, 170 : 235 - 244
  • [49] Experimental Investigation of the Initial Stages of Flame Propagation in a Spark-Ignition Engine: Effects of Fuel, Hydrogen Addition and Nitrogen Dilution
    Tahtouh, Toni
    Halter, Fabien
    Mounaim-Rousselle, Christine
    Samson, Erwann
    SAE INTERNATIONAL JOURNAL OF ENGINES, 2010, 3 (02) : 1 - 19
  • [50] DETERMINATION OF CONCENTRATION LIMITS OF FLAME PROPAGATION IN OXYHYDROGEN MIXTURES ON INITIAL PRESSURE INTERVAL FROM 1 TO 100 ATM ABS
    KOGARKO, SM
    RYABIKOV, OB
    COMBUSTION EXPLOSION AND SHOCK WAVES, 1973, 6 (03) : 354 - 355