Quantitative Effect of Void Ratio on Hydrogen Detonation Wave Structure
As a clean and efficient renewable energy,hydrogen energy has a broad development prospect.However,it is easy to cause explosion accidents in the process of use,transportation and storage,which seriously threatens the safety of people's lives and property.It is of great significance to study the suppression measures of detonation wave propagation in hydrogen premixed gas.The detonation propagation mechanism of 2H2+O2+3Ar premixed gas in the pipe gallery and the effect of multiple porous materials on the acoustic characteristics and propagation velocity of detonation wave were experimentally studied.Al2O3 foam ceramics are installed in the smooth pipe.With the increase of the pore density of Al2O3 foam ceramics,the deviation between the measured value and the theoretical value of the included angle between the detonation trajectory and the pipe axis in the pipe becomes larger,the deviation between the pipe diameter pitch ratio and the acoustic theoretical value becomes larger,and the helical frequency of the detonation wave decreases.When the foam iron nickel metal is installed in the smooth pipe,the deviation between the measured value of the left-hand and right-hand wave track pipe axis angle and the acoustic theoretical value becomes larger.This discovery can provide a new solution to the safety problems in the process of hydrogen utilization,and make a certain contribution to China's double carbon goal.