Open AccessSimulation study on the influence of cofferdam on the leakage of liquid ammonia storage tank
Author(s) -
Xiaoqi Zhan,
Hongtao Liu,
Xuefeng Han
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/546/4/042046
Subject(s) - leakage (economics) , leak , cofferdam , liquid ammonia , storage tank , ammonia , mechanics , ammonia gas , diffusion , materials science , environmental science , petroleum engineering , geotechnical engineering , engineering , chemistry , thermodynamics , environmental engineering , waste management , physics , organic chemistry , economics , macroeconomics
This paper mainly researches the influence of cofferdam on the leakage liquid and gas diffusion after the liquid ammonia storage tank leaks. In the experiment, different leak-diffusion models were constructed for comparative analysis, and the fluid mechanics model was used for numerical simulation. At the same time, the calculation domain size was determined according to the blocking rate principle, and a physical model was established for simulation analysis. The experimental results show that the reasonable setting of the cofferdam can effectively reduce the diffusion distance of ammonia gas in the downwind direction and the concentration of the ammonia gas in the downwind direction after the leakage of the liquid ammonia storage tank, and is of great significance for reducing casualties and accident losses.