Modeling and Simulation of Liquefied Hazardous Gas Diffusion with GIS
A novel model for liquefied hazardous gas diffusion based on Gaussian puff instantaneous leakage theory has been developed. According to this model, the concentration of hazardous gas at certain time, location and weather condition can be calculated, and the concentration isolines at half lethal dose, severe injury dose, moderate injury dose, and slight injury dose can be traced out accordingly. The process of liquefied hazardous gas diffusion on the spatial distribution can be simulated and shown with GIS dynamically by programming. In simulations, the diffusion trend and pattern is described visually and exactly in the map, which can greatly help to predict and control the mischief caused by liquefied hazardous gas diffusion accidents. Though detailed application example, different zones connecting with eoncenwation isoliues at different dose are illustrated at different time, wind direction and speed. And the results are close to the actual situation.
hazardous gas diffusion Ganssian model GIS
HE Ning WU Zongzhi ZHENG Wei XU Bo XIE Yushu
Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 1000 China Academy of Safety Science and Technology,Beijing 100029,China School of Continuing Education,Beijing University of Posts and Telecommunications,Beijing 100876,Chi International Institute for Earth System Science,Nanjing University,Nanjing 210093,Nanjing,China Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 1000
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
1150-1154
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）