典型文献
"Relay-mode"promoting permeation of water-based fire extinguishing agent in granular materials porous media stacks
文献摘要：
Water-based fire extinguishing agent is the main means to deal with smoldering fires.However,due to the hydrophobic properties of the particle surface,the porous medium channel provide resistance and slow down the extinguishing agent flow during the downward permeation process.To promote the liquid permeation process in such porous media,this work studied liquid imbibition process and analyzed the oscillating and attenuating process of liquid level in capillary channel by theoretical,experimental,and numerical methods.An empirical mathematical equation was proposed to describe the oscillating pro-cess,and the effects of the capillary diameter and contact angle parameters on the transportation process were analyzed.Based on this,the"relay-mode"was proposed to promote the liquid transportation for-ward.Finally,the transient simulation results of liquid permeation in coal stacks showed when the liquid flowed through the channel with changed diameter from large to small ones,the transportation distance was several times longer than that through the unidiameter ones.The trend of liquid"relay-mode"in capillaries can be used to promote the permeation in granular materials porous media stacks.The rele-vant results also provide new thoughts to develop the water-based fire extinguishing agents and then improve the firefighting efficiency of deep-seated fire in porous media stacks.
文献关键词：
中图分类号：
作者姓名：
Kang Wang;Wei Tan;Liyan Liu
作者机构：
School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China;Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology,Tianjin 300350,China
文献出处：
引用格式：
[1]Kang Wang;Wei Tan;Liyan Liu-."Relay-mode"promoting permeation of water-based fire extinguishing agent in granular materials porous media stacks)[J].中国化学工程学报（英文版）,2022(07):98-112
A类：
unidiameter
B类：
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AB值：
0.508697
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
