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U.S. Mine Ventilation Symposium

Barrier; Explosion; Film Destruction; Methane Concentration; Shock Wave

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Shock Waves Generated In The Presence Of Barriers In Gas Explosions, Baiquan Lin, Shining Zhou Jun 1999

Shock Waves Generated In The Presence Of Barriers In Gas Explosions, Baiquan Lin, Shining Zhou

U.S. Mine Ventilation Symposium

This paper examines conditions that generates shock waves in a gas explosion through experiment. The result shows that the presence of barrier and thin film, which is similar to air door and stopping in underground coal mines, is very important for the generation of shock waves in a gas explosion. When there are physical barriers, the speed of transmission would be very fast and shock waves will result in the process; when the film is destroyed in gas explosion, shock waves will also appear which would result in an increase in explosion power. Therefore, in order to weaken the gas ...