A model for sizing potential impact areas of pipelines associated with natural gas containing H2S

作者：Li, Changjun; Wu, Xia^*; Liao, Kexi; Jia, Wenlong

来源：Energy Education Science and Technology Part A: Energy Science and Research , 2012, 29(2): 1015-1024.

• H2S-containing gas
• pipeline
• potential impact area
• Gaussian model

This study developed an approach to sizing the ground areas potentially affected by ruptured H2S-containing gas pipelines; there are two possible consequences of such an event: ignition or poisoning. For ignition, the traditional model presenting a thermal radiation circle was adopted. For poisoning, two kinds of models presenting the poisonous dispersion areas were both established and solved. Windy dispersion model associated with wind speed u>1.5m/s was deduced from Gaussian plum model, and its solution is an iterative equation with two constraints; windless dispersion model with u <= 1.5m/s was deduced from Gaussian puff model, and its solution is a potential poisoning circle. The applications show the shape of potential impact area under windy condition is approximate to an ellipse, and the farthest downwind dispersion distance is larger than the widest dispersion width on vertical wind direction. The applications also show that which is larger between the ignition circle and windless dispersion poisoning circle is uncertain of different pipelines.

• 出版日期2012-7
• 单位西南石油大学