Numerical simulation of gas deflagration and venting in cylindrical vessel

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Gas explosion accident in cylindrical vessel frequently happens in plants, which severely threatens safety production of process industries. To prevent such accidents appropriately sized emergency vent is installed. Sizing the vent is most important which requires fully understanding of gas deflagration and venting process in cylindrical vessel. In this paper, physical model is presented first after well investigation of deflagration and venting process in cylindrical vessel. Then a mathematical model is built based on law of energy and mass conversation, gas state equation, isentropic compression equation and mass rate of discharging equation. By four rank Runge-Kutta method the differential equations are solved. Pressure, rate of pressure rise, distance of flame front from ignition point and flame speed at different time can be calculated. Numerical simulation results show that vent area and vent opening pressure have dramatic influence on gas deflagration and venting in vessel.

源语言英语
主期刊名Progress in Safety Science and Technology Volume 4
主期刊副标题Proceedings of the 2004 International Symposium on Safety Science and Technology
编辑W. Yajun, H. Ping, L. Shengcai
1608-1613
页数6
版本PART A
出版状态已出版 - 2004
活动Progress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology - Shanghai, 中国
期限: 25 10月 200428 10月 2004

出版系列

姓名Progress in Safety Science and Technology Volume 4:Proceedings of the 2004 International Symposium on Safety Science and Technology
编号PART A

会议

会议Progress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology
国家/地区中国
Shanghai
时期25/10/0428/10/04

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