A Leak Detection Method for Underground Polyethylene Gas Pipelines Using Simulation Software Ansys Fluent

被引:2
作者
Palaev, A. G. [1 ]
Fuming, Z. [1 ]
机构
[1] Empress Catherine II St Petersburg Min Univ, Dept Petr Engn, St Petersburg, Russia
来源
INTERNATIONAL JOURNAL OF ENGINEERING | 2024年 / 37卷 / 08期
关键词
Urban Gas; Underground Pipelines; Leak Detection; Polyethylene; RAPID CRACK-PROPAGATION; CFD ANALYSIS; EMISSIONS; RUPTURE; PIPE;
D O I
10.5829/ije.2024.37.08b.14
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this subsection, a simulation model of underground pipeline leaks was created. Modeling the flow fields of overhead pipelines and underground pipelines with different soil porosity was conducted. The influence of the underground environment and soil porosity on the pipeline leakage field was analyzed. The influence of changes in the underground environment and soil porosity on the loss of kinetic energy at gas leakage was defined. Thus, the law of change in the characteristics of the sound signal of a leak on the pipe wall was obtained. Based on the results of study, it was determined the area of damage to a gas pipeline which is depended on proportionality of the diameter of the gas jet. As the gas is released from a crack in the gas pipeline and with different porosity of the pipe material, the gas diffusion occurred. As a result, the explosion zone increased which ultimately the release of gases into the environment under the influence of pressure increased.
引用
收藏
页码:1615 / 1621
页数:7
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