EXPERIMENTAL TEST OF COMBUSTION AND EXPLOSION PRESSURE OF METHANE-AIR PREMIXED GAS

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.