Simulation Study on Influence of Natural Gas Pipeline Pressure on Jet Fire

4th International Conference on Energy Equipment Science and Engineering

Lyu, Shuran^1 ; Zhang, Yudong^1^2 ; Wang, Wanqing^1^2 ; Ma, Shuqi^1 ; Huang, Youbo^3

School of Safety and Environmental Engineering, Capital University of Economics and Business, Beijing

100070, China^1

Information School, Capital University of Economics and Business, Beijing

100070, China^2

College of Architecture and Civil Engineering, Beijing University of Technology, Beijing

100124, China^3

关键词: Affected area;    Different pressures;    Fire dynamics simulation;    Flame modeling;    High temperature;    Maximum temperature;    Pipe pressures;    Simulation studies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/2/022041/pdf
DOI  :  10.1088/1755-1315/242/2/022041

来源: IOP

【 摘 要 】

In order to study the influences of natural gas pipeline pressure on jet fire with FDS(fire dynamics simulation) software, based on principle of fluid mechanics and Thornton flame model, characteristics and hazard scope of the jet fire were comparatively studied for different pipe pressure. The results show that characteristics and hazard scope of the jet fire are largely affected by different pressure. When the pipe pressure is 0.2MPa and 0.4MPa, the size of both leak holes are same, during a same period, the latter flow is greater than the former. When the pipe pressure is greater than 0.8MPa, the leakage hole size is 100mm, and the maximum temperature, diameter and the high temperature affected area of the flame are increased.