CFD-BASED QUANTITATIVE RISK ANALYSIS OF LIQUID AMMONIA RELEASE
Liquid ammonia is an important chemical raw material and a highly dangerous material. It will result in disastrous consequence if the leakage occurs. As many liquid ammonia leakage incidents have happened in recent years, which demonstrate that the risk probabilities of the workers exposure to the released ammonia is quite high. The current researches are mainly focusing on the prediction of toxic gas concentrations based on the experience formulas, which is lack of precise prediction. However, the CFD method, which is a widely used method on studying toxic gas dispersion, can predict such danger precisely and accurately. This paper is aimed at using the CFD method and dose-response model to do the quantitative risk assessment of liquid ammonia release. A case of liquid ammonia releasing from a tank has been carried out by a two-phase model. Five monitor points with a distance of 30 - 300m from the release source are set to monitor ammonia concentrations at different time. The personnel poisoning risk is established by the dose-response model. The results show the MAC region and the lethal region of ammonia, and can provide valuable reference for the establishment of emergency plan and the prevention of personnel poisoning.
Hai-fa DENG Guo-ming CHEN
Center for Offshore Engineering and Safety Technology,China University of Petroleum Dongying,Shandong,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
93-97
2010-09-27（万方平台首次上网日期，不代表论文的发表时间）