FLACS CODE BASED CONSEQUENCE NUMERICAL SIMULATION TECHNOLOGY:APPLICATION OF CFD MODEL FOR RISK ASSESSMENT
Based on maximum credible events to assume accident scenarios, CFD software FLACS is applied to simulate gas dispersion and explosion consequences resulted from flammable and toxic material release from the spherical tank in a process plant. The results show that for a 1 -inch leakage hole size, flammable gas cloud is formed locally in the downwind area and liquefied hydrocarbon is restricted in the impounding basin, and in a 4-inch leak scenario flammable gas covers the whole plant area close to the ground, pool spreads outwards circulary. Dangerous gas concentration formation with time and evolvement are output at monitor points. The space congestion ratio is decreased in simplified plant geometry, so only fire occurs after the gas cloud is ignited without severe deflagration overpressure. Engineering application achievements prove that FLACS is able to simulate obstacle-disturbed gas flow field, output gas concentration formation time, height, duration or other physical parameters, whose mathematical models has been validated and modified by experiments, as well simulate consequence precisely and rapidly. So FLACS can be considered as mature and advanced consequence quantification method in risk assessment field.
FLA CS code pool model gas dispersion maximum credible events CFD risk assessment
Song Xian-sheng Li Huan Tang Jing Olav Roald Hansen Luo Ai-min
T-Solution shanghai,China T-Sohition Beijing,China GexCon US Maryland,U.S. China Academy of Safety Science and Technology,China Beijing,China
国际会议
The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)
北京
英文
334-340
2010-09-27（万方平台首次上网日期，不代表论文的发表时间）