首页|孔隙比对氢气爆轰波结构的定量影响

孔隙比对氢气爆轰波结构的定量影响

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氢能作为一种清洁高效的可再生能源,发展前景广阔,但其在使用、运输和储存过程中极易引起爆炸事故,严重威胁到人们的生命财产安全.研究氢气预混气爆轰波传播的抑制措施具有重要意义.针对管廊内的2H2+O2+3Ar预混气爆轰传播机理和多组多孔材料对爆轰波声学特性、传播速度的影响进行了实验研究.在光滑管道内安设Al2O3泡沫陶瓷,随着Al2O3泡沫陶瓷的孔隙密度增大,管道内爆轰轨迹-管轴夹角实测值与理论值偏差变大,管径-螺距比与声学理论值偏差变大,爆轰波螺旋频率降低.在光滑管道内安设泡沫铁镍金属,左旋波及右旋波轨迹-管轴夹角实测值与声学理论值偏差变大.这一发现可以为氢气利用过程中的安全问题提供新的解决思路,为我国双碳目标做出一定的贡献.
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.

porous materialshydrogendetonation experimentvoid ratioacoustic mode

赵焕娟、汪乐溪、张英华、林敏、周正青、蒋慧灵

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北京科技大学土木与资源工程学院,北京 100083

多孔材料 氢气 爆轰实验 孔隙比 声学模式

国家重点研发计划重点专项基金项目中央高校基本科研业务专项资金资助项目中央高校基本科研业务专项资金资助项目河南省瓦斯地质与瓦斯治理重点实验室开放基金项目

2018YFC0810606-02FRF-MP-20-20FRF-TP-19-020A3WS2020A03

2024

工程热物理学报
中国工程热物理学会 中国科学院工程热物理研究所

工程热物理学报

CSTPCD北大核心
影响因子:0.4
ISSN:0253-231X
年,卷(期):2024.45(1)
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