EXPERIMENTAL TEST OF COMBUSTION AND EXPLOSION PRESSURE OF METHANE-AIR PREMIXED GAS
Keywords:
Methane, Explosion device, Combustion and explosion experiment, Premixed gasAbstract
Methane, as a clean energy source, is increasingly widely used in industrial fields. The combustion and explosion characteristics of its premixed gas are crucial for efficient energy utilization and industrial safety. This paper presents experimental tests on the combustion and explosion of methane-air premixed gas. A 1000cc volume explosion device was designed and fabricated, and methane and air were sequentially filled into it. Four sets of combustion and explosion experiments were performed using methane–air premixed gas at different equivalence ratios, and the pressure variations throughout the entire combustion and explosion process were recorded. The results show that the peak pressure of the methane-air premixed gas combustion and explosion reaches 8-9 times the original premixed gas pressure. The experimental results provide important data support for the industrial application design of methane.References
[1] Cui L, Zhang X T, Zhou Q B, et al. Design and Simulation Study of Two Types of Methane/Air Gas Generators. Sensor World, 2024, 30(02): 11-16. DOI: 10.16204/j.sw.issn.1006-883X.2024.02.003.
[2] Chen J H, Bao W W, Yang X L, et al. Effect of Length-to-diameter Ratio on Overpressure Characteristics of Methane / Air Premixed Explosions. Blasting, 2025, 42(02): 13-21+110.
[3] Tousif Mohd, Harish Alagani, Muthu Kumaran S, et al. Numerical study of interaction of coal dust with premixed fuel-lean methane-air flames. Advanced Powder Technology, 2020, 31(9): 3833-3844.
[4] Salimath Prashant S, Ertesvag Ivar S, Gruber Andrea. Computational analysis of premixed methane-air flame interacting with a solid wall or a hydrogen porous wall. Fuel, 2020, 272(Jul.15): 117658.
[5] Reyes M, Tinaut F V, Gimenez B, et al. Effect of hydrogen addition on the OH* and CH* chemi-luminescence emissions of premixed combustion of methane-air mixtures. International Journal of Hydrogen Energy, 2018, 43(42): 19778-19791.
[6] Kou Kaikai, Ji Jianxun, Saleem Seher, et al. Quantitative measurement method of equivalence ratio based on temperature characterization in actual methane-air premixed flame. Analytica Chimica Acta, 2025, 1363: 344189.
[7] Chen J H, Zhang Z J, Wang H, et al. Study of effect of length-to-diameter ratio on overpressure impulse characteristics of methane /air premixed explosion. Blasting, 2025, 42(03): 184-193+202.
[8] Kadam Anil R, Parida Ritesh Kumar, Hindasageri Vijaykumar, et al. Heat transfer distribution of premixed methane-air laminar flame jets impinging on ribbed surfaces. Applied Thermal Engineering, 2019, 163: 114352.
[9] Zheng K, Zhou P. Explosion characteristics of discontinuous distribution methane/air in closed pipe. Fire Science and Technology, 2024, 43(08): 1059-1065. DOI: 10.20168/j.1009-0029.2024.08.1059.07.
[10] Song Y B, Xie W J, Liao W B, et al. Explosion experiment and analysis of premixed ammonia-hydrogen/methane-air. Guangzhou Chemical Industry, 2025, 53(23): 198-203. DOI: 10.20220/j.cnki.1001-9677.2025.23.053.