Analysis on the diffusion hazards of dynamic leakage of gas pipeline

被引：26
|
作者：
Yang Zhao [1 ]
Li Xihong
Lai Jianbo
机构：
[1] Tianjin Univ, Mech Engn Coll, Thermal Energy Res Inst, Tianjin 300072, Peoples R China
[2] Tianjin Sci & Tech Univ, Tianjin, Peoples R China
来源：
RELIABILITY ENGINEERING & SYSTEM SAFETY | 2007年 / 92卷 / 01期
基金：
中国国家自然科学基金;
关键词：
gas pipeline; dynamic leakage; diffusion; hazards; hazardous area;
D O I：
10.1016/j.ress.2005.11.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Through analysis on the process of gas pipeline's dynamic leakage, the calculating model of leakage ratio has been established. According to the variable characteristic of dynamic leakage ratio, the differential equations of inflow diffusion, and combining the relevant original and boundary conditions, the diffusion model of dynamic leakage of gas pipeline has been obtained by using Green function to solve the above differential equations. Based on the instance, the effect of the hole diameter, the shutoff time of gas feed, wind speed and distance to the maximal diffusion concentration, poisoning, burning and blasting areas have been discussed. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：47 / 53
页数：7
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